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This Chip Could Change Computing Forever

Video vocabulary

three

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US / θri: /

UK / θri /

A1
  • number
  • Number 3

university

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US / ˌju:nɪ'vɜ:sətɪ /

UK / ˌjunɪˈvɜrsəti /

A1
  • noun
  • High-level educational institution; college

quote

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US / kwəʊt /

UK / kwot /

A2
  • noun
  • Written statement of the cost of something
  • The (often wise or famous) words of another person
  • verb
  • To tell someone how much a task will cost
  • To repeat precisely what a person said or wrote

able

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US / 'eɪbl /

UK / ˈebəl /

A2
  • adjecitve
  • Skilled; good at something
  • Having the ability to do something

might

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US / maɪt /

UK / maɪt /

A1
  • other
  • Used to politely request an action
  • Used to express that something could happen
  • Power, strength, force or influence

phone

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US / fəʊn /

UK / foʊn /

A2
  • noun
  • Machine used to talk to someone who is far away
  • verb
  • To talk to someone using a telephone

than

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US / ðən /

UK / ðən /

A1
  • conjunction
  • Used to compare two things that are not equal

one

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US / wʌn /

UK / wʌn /

A1
  • pronoun
  • You; we; people in general; someone
  • The thing or person previously referred to
  • adjecitve
  • Used to refer to people generally
  • Being a strong example of (something mentioned)
  • number
  • Number 1

material

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US / məˈtɪəriəl /

UK / məˈtɪriəl /

A2
  • adjecitve
  • Relevant; (of evidence) important or significant
  • Belonging to the world of physical things
  • noun
  • Cloth; fabric
  • Supplies or data needed to do a certain thing
  • Substance from which a thing is made of

may

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US / meɪ /

UK / me /

A1
  • noun
  • 5th month of the year
  • other
  • Used to express a desire
  • Expresses permission, possibility or probability
  • Used to show that a thing could be true

term

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US / tɜ:m /

UK / tɚm /

A1
  • noun
  • Conditions applying to an agreement, contract
  • Length of time something is expected to happen
  • Fixed period of weeks for learning at school
  • The (precise) name given to something
  • verb
  • To call; give a name to

less

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US / les /

UK / lɛs /

A1
  • adjecitve
  • Smaller in amount or degree
  • adverb
  • To a smaller degree
  • noun
  • A smaller amount
  • preposition
  • With the subtraction of

big

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US / bɪɡ /

UK / bɪɡ /

A1
  • adjecitve
  • Popular
  • Serious
  • Large

walt

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US / ˈwɔ:lrəs /

UK / ˈwɔlrəs, ˈwɑl- /

A1

into

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US / 'ɪntə /

UK / ˈɪntu /

A1
  • preposition
  • Moving or going inside something
  • In the same direction as; in the direction of
  • So as to become; taking the state of

kind

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US / kaɪnd /

UK / kaɪnd /

A1
  • adjecitve
  • In a caring and helpful manner
  • friendly and considerate
  • noun
  • One type of thing

fit

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US / fɪt /

UK / fɪt /

A2
  • adjecitve
  • Good looking; physically attractive
  • Proper or acceptable; morally or socially correct
  • noun
  • Sudden loss of body control; attack (of crying)
  • verb
  • To install a machine, equipment etc.
  • To adjust or change to the right size or shape
  • To be the right size and shape that you want

perfect

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US / 'pɜ:fɪkt /

UK / ˈpɚfɪkt /

A1
  • adjecitve
  • So good it cannot be improved
  • verb
  • To do something so well, it cannot be done better

leak

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US / li:k /

UK / lik /

B1
  • noun
  • Act of (gas, liquid) escaping through a small hole
  • Information released that wasn't supposed to be
  • verb
  • (Of a tire) to have air, liquid escaping; (Of air)
  • To make secret information public
  • (Liquid) to go out of/get in through crack/opening

mention

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US / 'menʃn /

UK / ˈmɛnʃən /

A2
  • noun
  • Act of referring to or talking about something
  • verb
  • To refer to or talk or write about something

you

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US / jʊ /

UK / ju /

A1
  • pronoun
  • Person someone is speaking or writing to
  • Person or people in general

little

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US / 'lɪtl /

UK / ˈlɪtl /

A1
  • adjecitve
  • Being short in length of time
  • Not great in size, amount, or degree; small
  • Being very young or younger than others
  • adverb
  • By an amount or degree that is not very much
  • Not often; rarely
  • noun
  • A person's name

turn

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US / tɜ:n /

UK / tɚn /

A1
  • noun
  • Place where changing of direction happens
  • Your time or chance to perform a duty
  • Your chance to play or do in say a game
  • Unexpected change, as in the weather
  • verb
  • To become (a particular age)
  • To become a different quality, color, etc.
  • To change the direction of something, e.g. a car
  • To move in an opposite direction or position
  • To shape metal with a spinning tool

year

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US / jə: /

UK / jɪr /

A1
  • noun
  • Unit of time equal to 12 months or 365 or 366 days
  • Used to refer to the age of a person

average

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US / 'ævərɪdʒ /

UK / ˈævərɪdʒ, ˈævrɪdʒ /

A2
  • adjecitve
  • Typical or normal; usual; ordinary
  • noun
  • Total of numbers divided by the number of items
  • verb
  • To add numbers then divide by the number of items

word

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US / wɜ:d /

UK / wɚd /

A1
  • noun
  • Unit of language that has a meaning
  • Promise
  • Short remark or piece of information
  • verb
  • To express something by choosing particular words

honeycomb

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US / ˈhʌnikəʊm /

UK / ˈhʌnikoʊm /

C1
  • noun
  • Wax structure of six-sided cells made by bees

level

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US / 'levl /

UK / ˈlɛvəl /

A2
  • adjecitve
  • (Sports) equal to another
  • Being steady and determined (e.g. a voice)
  • noun
  • Specific height of something
  • Amount of ability you have compared to others
  • Floor or deck within a building
  • Tool used to determine if something is lying flat
  • verb
  • To aim a gun at someone
  • To destroy a building; flatten an area completely
  • To make things flat or even
  • To make a score equal to another, in sports

technical

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US / ˈteknɪkl /

UK / ˈtɛknɪkəl /

A2
  • adjecitve
  • Complex; difficult to understand
  • Of practical use of machine/science in industry

essential

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US / ɪ'senʃl /

UK / ɪˈsɛnʃəl /

A2
  • adjecitve
  • Extremely or most important and necessary

natural

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US / ˈnætʃərəl /

UK / ˈnætʃərəl, ˈnætʃrəl /

A1
  • adjecitve
  • Being as one would expect; being usual or normal
  • Not made by humans; without human intervention

broad

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US / brɔ:d /

UK / brɔd /

A2
  • adjecitve
  • General; not detailed
  • Wide; from the shorter two sides to the other

chemist

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US / ˈkemɪst /

UK / ˈkɛmɪst /

B1
  • noun
  • Person who sells medicines; drug store
  • Person who studies or does research in chemistry

scalable

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US / 'skeɪləbl /

UK / 'skeɪləbəl /

B2
  • adjecitve
  • Computers that can be increased or magnified
  • Capable of being re-sized

message

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US / 'mesɪdʒ /

UK / ˈmɛsɪdʒ /

A2
  • noun
  • Main idea or theme in a story, book, or film
  • Piece of information that is told/given to someone
  • verb
  • To communicate using text

molecular

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US / mə'lekjələ(r) /

UK / məˈlɛkjəlɚ /

B2
  • adjecitve
  • About or caused by molecules

other

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US / 'ʌðə(r) /

UK / ˈʌðər /

A1
  • adjecitve
  • A thing different from that mentioned
  • determiner
  • (Something) else; not the first (one)
  • pronoun
  • Being the one and only thing of that category

researcher

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US / rɪ'sɜ:tʃə(r) /

UK / rɪˈsətʃɚ /

A2
  • noun
  • Someone who works to find new facts and ideas

electricity

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US / ɪˌlekˈtrɪsəti /

UK / ɪlɛkˈtrɪsɪti,ˌilɛk- /

A2
  • noun
  • Energy generated positive and negative charges

this

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US / ðɪs /

UK / ðɪs /

A1
  • adjecitve
  • Used to indicate something already been discussed
  • Used to indicate something happening around now
  • adverb
  • An indication by a physical motion or gesture
  • A specific amount of
  • determiner
  • Person, thing, or idea near you
  • pronoun
  • Person, thing that has already been discussed

five

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US / faɪv /

UK / faɪv /

A1
  • number
  • 5

simply

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US / ˈsɪmpli /

UK / ˈsɪmpli /

A1
  • adverb
  • In an easy or clear manner

run

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US / rʌn /

UK / rʌn /

A1
  • noun
  • Journey between two places made by ship or car
  • Series of similar things or successes and failures
  • Act of running; exercise of running
  • verb
  • To depart or travel according to a schedule
  • To cause an animal to move in a certain direction
  • (Of an engine) to be operating
  • To start or use a computer program
  • To flow in a certain direction, like a liquid
  • To manage or operate a business
  • To operate or drive something
  • (Of a road) to go from one place to another
  • To move your legs faster than walking

make

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US / meɪk /

UK / mek /

A1
  • noun
  • Product made by a particular company; brand
  • verb
  • To arrange or prepare something e.g. dinner
  • To get to (a place) on time
  • To gain the status of (teacher, lawyer, etc.)
  • To create something by putting things together
  • To earn a certain amount of money at a job
  • To cause or force a person to do something
  • To cause something to happen or be formed

attempt

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US / ə'tempt /

UK / əˈtɛmpt /

A2
  • noun
  • Effort made to try to do or accomplish something
  • verb
  • To try to do something challenging or difficult

panel

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US / 'pænl /

UK / ˈpænəl /

A2
  • noun
  • Group who answer questions or give opinions
  • Flat surface with controls and switches
  • Flat, thin piece of material, often made of wood
  • verb
  • To cover a wall with thin pieces of wood

circuit

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US / ˈsɜ:kɪt /

UK / ˈsɜ:rkɪt /

B1
  • noun
  • An area where cars race in a circle
  • Route for journey all the way around a place
  • Series of events moving from place to place
  • other
  • Electronic equipment consisting of switches
  • verb
  • To complete a journey all the way round an area

welcome

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US / 'welkəm /

UK / ˈwɛlkəm /

A1
  • adjecitve
  • Being what was wanted or needed
  • noun
  • Friendly greeting to someone who has arrived
  • verb
  • To greet someone who has just arrived
  • To accept or receive something happily and gladly

bank

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US / bæŋk /

UK / bæŋk /

A1
  • noun
  • A financial institution that keeps or lends money
  • The side of a river
  • A row of things in lines (e.g. computers)
  • verb
  • To put or keep your money in a bank
  • To turn a plane when flying; (of a plane) to turn

power

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US / 'paʊə(r) /

UK / ˈpaʊɚ /

A1
  • noun
  • Legal or official right to perform certain actions
  • Ability to move forcefully and quickly
  • Energy of something (e.g. electricity or fuel)
  • Mathematical way to multiply a number
  • Condition of being in political control
  • Physical force, energy, and strength
  • verb
  • To give energy to something, e.g. by electricity
  • To move something forcefully and quickly

wish

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US / wɪʃ /

UK / wɪʃ /

A1
  • noun
  • Expression of a hope for something in the future
  • verb
  • To want something to happen or to become true

contact

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US / 'kɒntækt /

UK / ˈkɑnˌtækt /

A2
  • adjecitve
  • Touching or feeling something
  • noun
  • Touching or feeling something
  • Object that allows electricity to run through it
  • Communication with someone or something
  • People who can give you information, introductions
  • verb
  • To get in touch with someone

famous

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US / 'feɪməs /

UK / ˈfeməs /

A1
  • adjecitve
  • Excellent
  • Widely known; recognized by many people

wafer

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US / 'weɪfə(r) /

UK / ˈwefɚ /

C1
  • noun
  • Thin light cookie often accompanying ice cream

flip

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US / flɪp /

UK / flɪp /

B2
  • noun
  • Act of turning your body in the air; somersault
  • Movement of something from one position to another
  • verb
  • To turn your body in the air, as in gymnastics
  • To move into a different position quickly
  • To move a button or switch to turn on or off

effective

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US / ɪˈfektɪv /

UK / ɪˈfɛktɪv /

A1
  • adjecitve
  • Working efficiently to produce a desired result

state

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US / steɪt /

UK / stet /

A1
  • adjecitve
  • Concerning region within a country
  • noun
  • Region within a country, with its own government
  • Situation or condition something is in
  • verb
  • To say; declare as fact

free

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US / fri: /

UK / fri /

A1
  • adjecitve
  • Living, happening without being controlled
  • Costing no money
  • Not working; not busy
  • verb
  • To release (e.g. bird) from a cage or prison

man

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US / mæn /

UK / mæn /

A1
  • noun
  • Humans in general, including male and female
  • An adult male human being
  • Male who acts in a masculine way; not like a woman
  • verb
  • To control or operate (a machine); be in charge of
  • To operate a machine (a boat, etc.)

let

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US / let /

UK / lɛt /

A1
  • verb
  • To allow someone to do something
  • Introducing a suggestion to do something together
  • To rent a house, etc. to others

chemical

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US / ˈkemɪkl /

UK / ˈkɛmɪkəl /

A2
  • adjecitve
  • Made of various elements
  • noun
  • Basic substance produced by mixing elements

also

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US / 'ɔ:lsəʊ /

UK / ˈɔlso /

A1
  • adverb
  • In addition; too; in a similar way

open

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US / 'əʊpən /

UK / ˈopən /

A1
  • adjecitve
  • Available for use; accessible
  • Not being hidden; available for others to see
  • Being available for customers to enter or use
  • Allowing everyone to use or take part in
  • Not secret anymore
  • Not closed or shut
  • Willing to accept new ideas and thoughts
  • noun
  • Name for a tennis or golf competition
  • verb
  • To make accessible or able to be used, e.g. road
  • To start the activities or services of a business
  • To make a space or hole appear in something
  • To move or change so that it is no longer closed
  • To start something, e.g. a new business

versus

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US / ˈvə:səs /

UK / ˈvɚsəs, -səz /

A2
  • preposition
  • Used to show that two things are competing

how

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US / haʊ /

UK / haʊ /

A1
  • adjecitve
  • To what degree? in what amount?
  • adverb
  • (Used to explain the way to do something)
  • exclamation
  • For what purpose or reason?
  • (Used to ask someone or something's condition)

easily

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US / ˈi:zəli /

UK / ˈizəli /

A1
  • adverb
  • Clearly; without doubt; certainly
  • Without difficulty

band

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US / bænd /

UK / bænd /

A1
  • noun
  • Group of people who work together e.g. play music
  • Thin piece of material that wraps around something
  • verb
  • To come together to work on a project
  • To tie things together using string or rope

the

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US / ðə /

UK / ðə /

A1
  • article
  • Used to refer to something already mentioned
  • Used to show there is only one of something
  • determiner
  • Used to describe all of a family

lead

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US / li:d /

UK / lid /

A1
  • adjecitve
  • Being the main part in movies or plays
  • noun
  • Wire for electricity, computer, etc.; cable
  • Information that could help to solve a crime
  • Main part in a play or movie
  • Heavy, gray metal element
  • Rope used to tie something to stop it escaping
  • Act of being at the front in a race or game
  • verb
  • To show the way or guide others
  • To be at the front of a race or game
  • To travel in front of; go in advance of others

below

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US / bɪ'ləʊ /

UK / bɪˈlo /

A1
  • preposition
  • In a lower position, place, or level

surface

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US / 'sɜ:fɪs /

UK / ˈsɚfəs /

A2
  • adjecitve
  • Of the top layer; not deep or meaningful
  • noun
  • Top layer of the ground or of water
  • Nature or emotions that show, but may not be true
  • Outside or upper layer of something
  • verb
  • To give (road) a top layer
  • To appear after being hidden, unseen, or unknown
  • To come to the top of something; emerge
  • To come to the top level of water, mud, etc.

program

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US / 'prəʊɡræm /

UK / ˈproˌɡræm, -ɡrəm /

A1
  • noun
  • Small book of events in a play, concert or movie
  • A plan or schedule of events
  • Series of classes at a college or university
  • A computer application
  • TV show
  • verb
  • To make someone act or think in a certain way
  • To write computer code for a piece of software

efficient

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US / ɪˈfɪʃnt /

UK / ɪˈfɪʃənt /

A2
  • adjecitve
  • Able to produce results without waste

interface

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US / ˈɪntəfeɪs /

UK / ˈɪntərfeɪs /

B1
  • noun
  • Place where things come together to communicate
  • verb
  • To make two different elements interact

back

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US / bæk /

UK / bæk /

A1
  • adjecitve
  • Farthest from the front e.g. in a classroom
  • adverb
  • Have returned to a place you were before
  • noun
  • The part of a chair that the upper body leans upon
  • Location at the rear of something
  • The reverse of side something
  • Area on the rear of your body
  • verb
  • To bet money on something
  • To go backwards in a car
  • To support and encourage someone or some cause

over

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US / 'əʊvə(r) /

UK / ˈovɚ /

A1
  • adverb
  • Finished; no longer happening
  • Towards the ground/away from a standing position
  • noun
  • A set of six consecutive balls bowled in cricket
  • other
  • Finished
  • preposition
  • Showing the relation when a thing is above another
  • On or covering something
  • Above or across something
  • More than you need
  • From one side to the other
  • In the direction of; toward

conduction

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US / kənˈdʌkʃn /

UK / kənˈdʌkʃən /

A1
  • noun
  • The transmission of heat, electricity or sound

contrast

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US / 'kɒntrɑ:st /

UK / ˈkɑ:ntræst /

A2
  • noun
  • Comparison that shows obvious differences
  • Difference in light and dark in photos, etc.
  • verb
  • To compare; to show clear, obvious differences

from

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US / frəm /

UK / frʌm, frɑm,frəm /

A1
  • preposition
  • Starting at a particular place, time or level

major

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US / 'meɪdʒə(r) /

UK / ˈmedʒɚ /

A2
  • adjecitve
  • Main league; esp. referring to American baseball
  • Important, serious, or large in scope, size
  • noun
  • High-ranking officer in the army
  • Main subject you study at university
  • verb
  • To study a particular subject at university

rare

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US / reə(r) /

UK / rɛr /

A2
  • adjecitve
  • (Of meat) cooked, but still red and juicy
  • Unusual or out of the ordinary; not common

until

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US / ənˈtɪl /

UK / ʌnˈtɪl /

A1
  • conjunction
  • Up to; to a time when something happens
  • preposition
  • Before (a specific time)

throughout

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US / θru:ˈaʊt /

UK / θruˈaʊt /

A2
  • adverb
  • From the beginning of something until the end
  • preposition
  • Over/across an entire place/thing; in every part

external

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US / eksˈtə:nl /

UK / ɪkˈstɚnəl /

A2
  • adjecitve
  • Concerning foreign countries
  • Concerning the outside of something; outer
  • Coming from the outside

two

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US / tu: /

UK / tu /

A1
  • number
  • 2

synthesize

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US / 'sɪnθəsaɪz /

UK / ˈsɪnθɪˌsaɪz /

B2
  • other
  • To combine different things into a new form
  • verb
  • To combine different things into a new form
  • To combine different sounds into a new form

out

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US / aʊt /

UK / aʊt /

A1
  • adverb
  • No longer stylish (e.g. fashion)
  • Away from home, business, or the usual place
  • In a direction/movement away from inside or center
  • noun
  • Act when a batter cannot continue playing
  • verb
  • To tell people a secret

normally

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US / ˈnɔ:məli /

UK / ˈnɔːrməli /

B1
  • adverb
  • In the manner that is usual or ordinary

and

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US / ənd /

UK / ənd, ən,ænd /

A1
  • conjunction
  • Used to refer to two or more things
  • Plus; in addition; on top of that
  • Used to introduce an action that follows another

along

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US / əˈlɒŋ /

UK / əˈlɔ:ŋ /

A1
  • adverb
  • As a companion; taken with someone
  • preposition
  • At a point on a line

channel

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US / 'tʃænl /

UK / ˈtʃænəl /

B1
  • noun
  • Long hole dug in the ground, e.g. to move water
  • TV or radio station or its programs
  • Method or way of sending or receiving information
  • Narrow passage through which water travels
  • Method or route used for sending or getting things
  • verb
  • To dig a long hole for carrying water
  • To send (e.g. money) to a certain place or person
  • To direct water or liquid through a passage
  • To direct energy or feelings into something

something

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US / ˈsʌmθɪŋ /

UK / ˈsʌmθɪŋ /

A1
  • adverb
  • In some degree or measure
  • noun
  • a person or thing of some value or consequence
  • pronoun
  • Thing that is not yet known or named
  • Approximately

journal

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US / ˈdʒə:nl /

UK / ˈdʒɚnəl /

B1
  • noun
  • A diary; record of what you do every day
  • Magazine of academic papers

wave

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US / weɪv /

UK / wev /

A2
  • noun
  • Movement of sound, air or energy
  • Deep and strong emotion that is suddenly felt
  • Slightly curved shape in hair
  • Frequency of movement of objects together
  • Up and down movement of water in a lake or sea
  • Signal with your hand to say hello or goodbye
  • verb
  • To cause to move side to side or back and forth
  • To swing back and forth as a result of the wind
  • To move your hand or arm to say hello or goodbye

slash

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US / slæʃ /

UK / slæʃ /

B2
  • noun
  • Line ( / ) used in writing
  • Long, deep cut, caused by a sharp object
  • verb
  • To cut violently with a sharp object
  • To decrease something by a large amount

tube

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US / tju:b /

UK / tub,tjub /

B1
  • noun
  • Plastic or metal container for soft substances
  • Long hollow pipe used to hold or liquids or gases

economically

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US / ˌi:kəˈnɒmɪkli /

UK / ˌikəˈnɑmɪklɪ /

B1
  • adverb
  • In an efficient manner
  • In an efficient manner; without using much effort
  • In a way that relates to economics or finance

where

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US / hwɛə /

UK / hwɛr, wɛr /

A1
  • conjunction
  • At or in the place which
  • In whatever place
  • pronoun
  • Word you use to ask the location of something

behalf

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US / bɪˈhɑːf /

UK / bɪˈhæf /

B2

manipulate

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US / mə'nɪpjʊleɪt /

UK / məˈnɪpjəˌlet /

B1
  • verb
  • To try to control others to gain an advantage
  • To handle or work in a skillful manner

electron

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US / ɪˈlektrɒn /

UK / ɪˈlektrɑ:n /

B2
  • noun
  • A negatively charged particle

evaporate

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US / ɪˈvæpəreɪt /

UK / ɪˈvæpəˌret /

B2
  • verb
  • To pass off or away; to disappear
  • To change from a liquid into a gaseous state

efficiency

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US / ɪˈfɪʃnsi /

UK / ɪˈfɪʃənsi /

A2
  • noun
  • Working well; producing something without waste

industry

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US / 'ɪndəstrɪ /

UK / ˈɪndəstri /

A1
  • noun
  • Hard work; being busy working
  • Factories or businesses that make certain products

think

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US / θɪŋk /

UK / θɪŋk /

A1
  • verb
  • To have an idea about something without certainty
  • To have an idea, opinion or belief about something

picture

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US / 'pɪktʃə(r) /

UK / ˈpɪktʃɚ /

A1
  • noun
  • General situation or state of being
  • Mental image of what something is or looks like
  • Movie; film
  • Painting, drawing or photograph on paper or screen
  • verb
  • To understand or imagine something
  • To imagine someone or something in an image

plenty

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US / 'plentɪ /

UK / ˈplɛnti /

A2
  • pronoun
  • When there is not too little of something; a lot

name

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US / neɪm /

UK / nem /

A1
  • noun
  • What something or someone is called
  • verb
  • To state what someone is called, e.g. John

electrical

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US / ɪˈlektrɪkl /

UK / ɪˈlektrɪkl /

A2
  • adjecitve
  • Related or connected to electricity

join

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US / dʒɔɪn /

UK / dʒɔɪn /

A1
  • verb
  • To bring something close to another, to become one
  • To become a member of
  • To participate in an activity with others

finally

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US / ˈfaɪnəli /

UK / ˈfaɪnəli /

A1
  • adverb
  • used especially at the beginning of a sentence to introduce the last point or idea
  • After a long time or some difficulty

tight

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US / taɪt /

UK / taɪt /

A2
  • adjecitve
  • Showing anxiety or anger; tense
  • Positioned physically close together
  • Managed or controlled in a strict and careful way
  • (Of road, bend) curving sharply
  • Drunk
  • Being equally matched in ability or score
  • Lacking extra space
  • Having limited time available
  • Being very limited in supply
  • Not generous; mean with money; stingy
  • (Rope or tie) pulled strongly
  • Being in a good solid relationship
  • adverb
  • Firmly; so it can't move

nineteen

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US / ˌnaɪnˈti:n /

UK / naɪnˈtin /

A1
  • number
  • 19

form

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US / fɔ:m /

UK / fɔrm /

A1
  • noun
  • Sports team or person's current winning record
  • Document you complete when making an application
  • Visible shape or style; type; kind
  • verb
  • To organize something such as a club or group
  • To develop; to come into a shape or substance
  • To make something into a particular shape

another

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US / əˈnʌðə(r) /

UK / əˈnʌðɚ /

A1
  • adjecitve
  • One more, but not this
  • determiner
  • One more added
  • pronoun
  • One more (thing)

come

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US / kʌm /

UK / kʌm /

A1
  • verb
  • To arrive at a place
  • (Of mail) to be delivered
  • To move toward someone; go with someone
  • To reach a certain point or state

help

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US / help /

UK / hɛlp /

A1
  • noun
  • Something given to enable a person to do something
  • Assistance given to someone in need
  • Someone who makes something easier or possible
  • verb
  • To act to enable a person to do something; assist
  • To make something better or less difficult

volt

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US / vəult /

UK / volt /

B1
  • noun
  • Unit in which electricity is measured

layer

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US / ˈleiə /

UK / ˈleɚ /

B1
  • noun
  • One of several sheets of a material or object
  • verb
  • To put things one on top of another

effort

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US / ˈefət /

UK / ˈɛfət /

A2
  • noun
  • Amount of work used trying to do something

temperature

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US / ˈtemprətʃə(r) /

UK / ˈtɛmpərəˌtʃʊr,-tʃɚ,ˈtɛmprə- /

A2
  • noun
  • When you your body heat is above normal
  • How hot or cold something is, e.g. the weather

flat

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US / flæt /

UK / flæt /

A2
  • adjecitve
  • Level; even; without curves or bumps
  • Lifeless; lacking energy or vitality
  • adverb
  • In a certain, direct or absolute manner
  • Against a surface without lifting or curving away
  • noun
  • Apartment; set of rooms for living in
  • The smooth or level part of something
  • Musical tone lower than another by a small degree
  • verb
  • To share an apartment with someone

leave

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US / li:v /

UK / liv /

A1
  • noun
  • Permission to do something
  • Vacation time; time off work
  • verb
  • To go away from; depart
  • To gift property to someone after you die
  • To allow something to continue happening
  • To let something remain unused or available
  • To let something or someone remain somewhere

anything

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US / ˈeniθɪŋ /

UK / ˈɛniˌθɪŋ /

A1
  • pronoun
  • A thing of any kind

large

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US / lɑ:dʒ /

UK / lɑ:rdʒ /

A1
  • adjecitve
  • Big; of great size; broad, tall, wide, or fat

only

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US / ˈəunli /

UK / ˈonli /

A1
  • adverb
  • Just one; just that amount or thing; not more than
  • Not very important or serious
  • Just that type of thing, person
  • Short time ago; not before a certain time
  • conjunction
  • Except; but

ten

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US / ten /

UK / tɛn /

A1
  • number
  • 10

base

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US / beɪs /

UK / bes /

A2
  • noun
  • Place military personnel live, train, and operate
  • Bottom part of an object that touches a surface
  • Unit of counting, e.g. 10 for counting
  • Most important idea or ingredient to add others
  • Origin or start from which something came
  • Main place where an organization or a person works
  • verb
  • To use as the starting point or origin for
  • To have as the main location for (company, etc.)

call

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US / kɔ:l /

UK / kɔl /

A1
  • noun
  • A order or request for action
  • The sound an animal makes, often when in danger
  • A correct prediction, e.g. a decision in a game
  • A short visit to a place or person
  • A decision by a referee or umpire in a game
  • verb
  • To make a request or order for action
  • (Animal) to make sounds to warn of danger
  • To announce the date of an election
  • To make a judgment about something
  • To give someone or something a name
  • To guess in advance the result or outcome
  • To visit a place or person for a short time
  • To phone someone
  • To speak, announce or shout in a loud voice

lot

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US / lɒt /

UK / lɑt /

A1
  • noun
  • What happens to a person in life from chance; fate
  • A group of people seen together
  • Item for sale at an auction
  • Small area of land used for a purpose e.g. parking

crystal

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US / 'krɪstl /

UK / ˈkrɪstəl /

B1
  • noun
  • A solid formed by the solidification of a chemical
  • Rock with regularly repeating internal structure
  • Person's name

guy

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US / ɡaɪ /

UK / ɡaɪ /

A1
  • noun
  • Man; boy; any person

nucleus

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US / ˈnju:kliəs /

UK / ˈnu:kliəs /

B2
  • noun
  • Center of an atom
  • Control center of a cell
  • Most important part of something larger

rest

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US / rest /

UK / rɛst /

A1
  • noun
  • Time when one relaxes, sleeps, or is inactive
  • State in which there is a lack of motion
  • Part of something remaining after some was used
  • verb
  • To stop working or avoid activity to recover
  • (Of dead person) to lie in a grave
  • To lean, support or place something against
  • To not be tired because you had enough sleep

inexpensive

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US / ˌɪnɪkˈspensɪv /

UK / ˌɪnɪkˈspɛnsɪv /

B1
  • adjecitve
  • Having a low price; cheap

biological

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US / ˌbaɪəˈlɒdʒɪkl /

UK / ˌbaɪəˈlɑdʒɪkəl /

B1
  • adjecitve
  • Being related to life and living things

most

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US / məʊst /

UK / most /

A1
  • adverb
  • Very; extremely
  • Greatest possible degree
  • pronoun
  • Nearly all of something

double

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US / 'dʌbl /

UK / ˈdʌbəl /

A2
  • adjecitve
  • Concerning or intended for use by two people
  • Two times the amount or degree; twice
  • Made of two parts that are the same, similar
  • noun
  • Person that is exactly like someone else
  • verb
  • To be used for two functions at the same time
  • To make or become twice as much

switch

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US / swɪtʃ /

UK / swɪtʃ /

A2
  • noun
  • A change or shift from one method to another
  • Thing you move to turn electrical items on or off
  • Thin flexible piece of wood or stick
  • verb
  • To exchange or replace something for another thing

here

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US / hɪə(r) /

UK / hɪr /

A1
  • adverb
  • In this place; at this location, position or time

setup

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US / 'setʌp /

UK / ˈsɛtˌʌp /

B2
  • noun
  • Way something is organized or arranged

actually

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US / ˈæktʃuəli /

UK / ˈæktʃuəli /

A1
  • adverb
  • Used to add new (often different) information

valance

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US / ˈvæləns /

UK / ˈvæləns /

C2
  • noun
  • Decorative part to hide fittings at top of curtain

imagine

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US / ɪ'mædʒɪn /

UK / ɪˈmædʒɪn /

A1
  • verb
  • To think creatively about; form mental picture of

realm

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US / relm /

UK / rɛlm /

B2
  • noun
  • Area ruled by a king or queen
  • Field of knowledge or thought

day

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US / deɪ /

UK / de /

A1
  • noun
  • A period of 24 hours beginning at midnight
  • The period of time when it is light outside
  • Person's name

electronic

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US / ɪˌlek'trɒnɪk /

UK / ɪlɛkˈtrɑnɪk, ˌilɛk- /

A2
  • adjecitve
  • Operating by use of electricity; digital

compute

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US / kəm'pju:t /

UK / kəmˈpjut /

A1
  • verb
  • To find out by calculating or estimating

reason

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US / 'ri:zn /

UK / ˈrizən /

A1
  • noun
  • Ability to think about facts and form a judgment
  • Explanation for why something occurred or was done
  • verb
  • To think and make conclusions in a logical manner

carbon

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US / 'kɑ:bən /

UK / ˈkɑrbən /

B1
  • noun
  • Chemical element with an atomic number of 6

beneficial

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US / ˌbenɪˈfɪʃl /

UK / ˌbɛnəˈfɪʃəl /

B1
  • adjecitve
  • Giving an advantage, having a helpful effect

integrate

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US / ˈɪntɪgreɪt /

UK / ˈɪntɪˌɡret /

A2
  • verb
  • To combine together; make into one thing

heavily

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US / ˈhevɪli /

UK / hɛvəli /

A2
  • adverb
  • In a slow, loud manner
  • A lot or to a great degree
  • With great effort or force

code

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US / kəʊd /

UK / kod /

A2
  • noun
  • A password made of a set of letters or numbers
  • Set of rules for behavior
  • A secret language using secret symbols
  • Written part of a computer program
  • verb
  • To express information in a series of numbers
  • To write a secret message using secret symbols
  • To write programs using computer languages

shift

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US / ʃɪft /

UK / ʃɪft /

A2
  • adjecitve
  • (Of work) starting at a certain time, as at night
  • noun
  • A change in a persons plans, opinions or beliefs
  • Period of work starting at a certain time
  • verb
  • To change in position or direction
  • To move something from one place to another

sure

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US / ʃʊə(r) /

UK / ʃʊr /

A1
  • adjecitve
  • Having no doubts about something
  • Have confidence in your own words or actions
  • Firmly established or held; being firm or stable
  • Being correct or true
  • adverb
  • What you say to agree willingly

four

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US / fɔ:(r) /

UK / fɔr, for /

A1
  • number
  • 4

liquid

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US / ˈlɪkwɪd /

UK / ˈlɪkwɪd /

A2
  • adjecitve
  • (Of wealth) being able to be spent as cash
  • In a state of being uncertain
  • Moving in a flowing manner, like water or oil
  • noun
  • Something that is similar to the state of water

conductivity

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US / ˌkɒndʌk'tɪvətɪ /

UK / ˌkɑndʌkˈtɪvɪti /

A1
  • noun
  • Transmission of heat or electricity or sound

vapor

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US / 'veɪpə /

UK / ˈvepɚ /

A1
  • noun
  • Tiny droplets or pieces of some substance spread thinly throughout the air
  • Liquid that has been changed into a gas
  • Droplets of substance spread thinly through air

massive

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US / ˈmæsɪv /

UK / ˈmæsɪv /

B1
  • adjecitve
  • Very big; large; too big

inside

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US / ˌɪn'saɪd /

UK / ɪnˈsaɪd, ˈɪnˌsaɪd /

A2
  • adjecitve
  • Being in something
  • Being in a building
  • adverb
  • Into a house; indoors
  • noun
  • Inner part or surface of something

breakthrough

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US / 'breɪkθru: /

UK / ˈbrekˌθru /

B2
  • noun
  • Important discovery in doing something difficult

heat

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US / hi:t /

UK / hit /

A2
  • noun
  • State of anger, excitement, or arguing
  • Particular temperature at which to cook something
  • High temperature
  • One of series of races to find the finalists
  • Hot temperature, conditions, or weather
  • verb
  • To make hot or hotter

fortunately

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US / ˈfɔ:tʃənətli /

UK / ˈfɔ:rtʃənətli /

A2
  • adverb
  • Through good luck; luckily

straight

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US / streɪt /

UK / stret /

A2
  • adjecitve
  • Not having curves, bends, or angles
  • Not gay; heterosexual
  • honest and direct
  • adverb
  • in a line; immediately; honestly and directly

develop

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US / dɪ'veləp /

UK / dɪˈvɛləp /

A1
  • verb
  • To explain something in steps and in detail
  • To create or think of something
  • To grow bigger, more complex, or more advanced
  • To make a photograph from film

summary

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US / ˈsʌməri /

UK / ˈsʌməri /

B1
  • adjecitve
  • Brief, complete and accurate
  • noun
  • Shorter statement of the most important parts

sell

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US / sel /

UK / sɛl /

A1
  • verb
  • To exchange something for money
  • To persuade people to do, like or agree

story

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US / 'stɔ:rɪ /

UK / ˈstɔri, ˈstori /

A1
  • noun
  • One of many floors or levels in a building
  • Account or description of how something happened

certain

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US / ˈsə:tn /

UK / ˈsɚtn /

A1
  • adjecitve
  • Definite, fixed
  • Referring to an unspecified amount or quantity
  • Being sure about something; without doubt

available

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US / əˈveɪləbl /

UK / əˈveləbəl /

A1
  • adjecitve
  • Present and able to be used
  • Able to be used at a scheduled time

ensure

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US / ɪn'ʃʊə(r) /

UK / ɛnˈʃʊr /

A2
  • verb
  • To make something sure, certain, or safe

area

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US / 'eərɪə /

UK / ˈɛriə /

A1
  • noun
  • Amount of measured space
  • A specific section or space; part of a region
  • A subject or field of study

use

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US / ju:s /

UK / ju:s /

A1
  • noun
  • Ability to employ something
  • Need to enable it to work
  • Permission to do something with something
  • Act of spending money
  • Operation of a machine for its function
  • verb
  • To have; to eat, drink, consume etc.
  • To need to operate or work
  • To operate a machine, e.g. a computer
  • To treat a person badly
  • To do something with, for a task or purpose

quick

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US / kwɪk /

UK / kwɪk /

A1
  • adjecitve
  • Using very little time; moving far in little time
  • Learning and understanding rapidly and easily

argon

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US / ˈɑ:gɒn /

UK / ˈɑ:rgɑ:n /

A1
  • noun
  • One of the 6 colorless and odorless inert gases

reside

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US / rɪˈzaɪd /

UK / rɪˈzaɪd /

B1
  • verb
  • To live in; dwell; to be present

new

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US / nju: /

UK / nu, nju /

A1
  • adjecitve
  • Not old, recently born, built or made
  • Being or doing something for the first time
  • Not felt, seen or known previously
  • Having been recently bought or obtained

uniform

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US / ˈju:nɪfɔ:m /

UK / ˈju:nɪfɔ:rm /

A2
  • adjecitve
  • Not changing your conduct or opinion
  • noun
  • Set of clothes showing you belong to an army, etc.
  • verb
  • To dress in formal clothes like the army wear
  • To make a group of things the same

feel

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US / fi:l /

UK / fil /

A1
  • verb
  • To be aware of or experience an emotion, sensation
  • To sense through direct contact; touch

past

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US / pɑ:st /

UK / pæst /

A2
  • adjecitve
  • No longer current or new
  • adverb
  • So as to go beyond, or further than something
  • noun
  • Time that existed before now, e.g. long ago
  • preposition
  • After a particular time
  • At a later point in distance; beyond

small

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US / smɔ:l /

UK / smɔl /

A1
  • adjecitve
  • Little in size; not big
  • (Of letters) not written in capital letters
  • Being insignificant or minor
  • (Of a business) with few people or things; local
  • (Of voice) being soft and quiet
  • (Of a child) being young

viable

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US / ˈvaɪəbl /

UK / ˈvaɪəbəl /

B1
  • adjecitve
  • Being capable of living, growing, and developing

normal

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US / 'nɔ:ml /

UK / ˈnɔrməl /

A1
  • adjecitve
  • Standard or regular way of doing something
  • Having standard mental or physical ability, health

discipline

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US / 'dɪsəplɪn /

UK / ˈdɪsəplɪn /

B1
  • noun
  • Instruction and practice to teach obedience
  • Particular field of study
  • Act of punishing a person for wrongdoing
  • verb
  • To control or train others by making them obey you
  • To punish a person for their wrongdoing

many

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US / 'menɪ /

UK / ˈmɛni /

A1
  • determiner
  • Used to refer a large number of things

try

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US / traɪ /

UK / traɪ /

A1
  • noun
  • Act of putting the ball over the rugby goal line
  • verb
  • To make an effort, to attempt to do something
  • To examine someone or something in a court of law
  • To test to see if it is good or you like it
  • To make a person go through hardship; test
  • To examine something to see if it works

ever

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US / 'evə(r) /

UK / ˈɛvɚ /

A1
  • adverb
  • At any time; at all times in the future

publish

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US / 'pʌblɪʃ /

UK / ˈpʌblɪʃ /

A2
  • verb
  • To prepare and make available a book magazine etc.
  • To release information to the general public

continue

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US / kən'tɪnju: /

UK / kənˈtɪnju /

A1
  • verb
  • To do something without stopping, or after pausing
  • To start doing again after a break, pause, or stop

white

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US / waɪt /

UK / hwaɪt, waɪt /

A1
  • adjecitve
  • Belonging to a race of people with light skin
  • Of the color of fresh snow and milk
  • noun
  • Person's name
  • Lightest color; The color of fresh snow.

thick

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US / θɪk /

UK / θɪk /

A2
  • adjecitve
  • Difficult to see through, as fog
  • Full of (people, etc.)
  • (Of a liquid) that moves or pours slowly
  • Stupid; not smart
  • (Of person's accent) hard to understand
  • Having a large distance between two surfaces

broker

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US / 'brəʊkə(r) /

UK / ˈbrokɚ /

B1
  • noun
  • Person who acts to buy or sell shares in companies
  • verb
  • To negotiate a business deal

probably

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US / ˈprɒbəbli /

UK / ˈprɑbəbli /

A1
  • adverb
  • That is likely to happen or be true

science

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US / 'saɪəns /

UK / ˈsaɪəns /

A2
  • noun
  • Study of the physical world, based on facts

component

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US / kəmˈpəʊnənt /

UK / kəmˈponənt /

A2
  • adjecitve
  • Being a part of something
  • noun
  • One of the parts that something is made up of

episode

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US / 'epɪsəʊd /

UK / ˈɛpɪˌsod /

B1
  • noun
  • One separate event in a series of events
  • Show which is part of a larger story

after

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US / 'ɑ:ftə(r) /

UK / ˈæftɚ /

A1
  • adverb
  • Later than another time, or behind something
  • conjunction
  • Following something before
  • preposition
  • When an event happened or time has passed

point

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US / pɔɪnt /

UK / pɔɪnt /

A1
  • noun
  • An item to be discussed
  • Small spot or dot
  • Fact or detail
  • Feature of something
  • The size of the text on a page or screen
  • A certain time or stage in a process
  • Certain position in time or space
  • Idea or fact you try to convince people about
  • Measurement of scores in a game, sport
  • Sharp end of something, e.g. a pen or pin
  • verb
  • To face a certain direction, e.g. north
  • To indicate something with your finger to others

team

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US / ti:m /

UK / tim /

A1
  • noun
  • Group of people working on a task together
  • Group of people playing a sport together

while

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US / waɪl /

UK / hwaɪl, waɪl /

A1
  • conjunction
  • In spite of the fact that; although
  • During the time that; at the same time
  • noun
  • Short amount of time

will

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US / wɪl /

UK / wɪl /

A1
  • noun
  • Desire or choice of someone
  • Document saying who gets your money when you die
  • Strong desire to do something; determination
  • Desire to do something; strong wish to do
  • other
  • Used with verbs to express the future
  • verb
  • To leave property to someone after your death
  • To use mental effort to make something happen
  • Am (is, are) likely to do
  • To influence someone to do something
  • To make something happen by strongly wanting it

gigahertz

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US / ˈgɪgəhɜ:ts /

UK / ˈgɪgəhɜ:rts /

C2
  • noun
  • A unit of frequency equal to 10^9 hertz

thousand

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US / ˈθaʊznd /

UK / ˈθaʊzənd /

A1
  • number
  • Number 1,000

plan

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US / plæn /

UK / plæn /

A1
  • noun
  • Drawing of how something should be done or made

low

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US / ləʊ /

UK / lo /

A1
  • adjecitve
  • Having a small quantity, supply, or amount
  • Being unhappy or unpleasant in attitude
  • Not high; being near the ground, or bottom
  • (Of a voice, sound) being soft; quiet
  • noun
  • Situation of not having a lot of something

delete

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US / dɪ'li:t /

UK / diˈlit /

B1
  • verb
  • To remove or erase something

six

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US / sɪks /

UK / sɪks /

A1
  • number
  • 6

decade

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US / ˈdekeɪd /

UK / ˈdɛkˌed, dɛˈked /

B1
  • noun
  • Period of 10 years

increase

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US / ɪn'kri:s /

UK / ɪnˈkris /

A1
  • noun
  • Fact of increasing; amount something grows by
  • verb
  • To make or become larger in size or amount

process

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US / prə'ses /

UK / ˈprɑsˌɛs, ˈproˌsɛs /

A2
  • noun
  • Dealing with official forms in the way required
  • Set of changes that occur slowly and naturally
  • verb
  • To organize and use data in a computer
  • To deal with official forms in the way required
  • To prepare by treating something in a certain way
  • To adopt a set of actions that produce a result
  • To convert by putting something through a machine

recently

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US / ˈri:sntli /

UK / 'risṇtlɪ /

A1
  • adverb
  • Just a while ago; not long ago

away

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US / ə'weɪ /

UK / əˈwe /

A1
  • adjecitve
  • Not present
  • adverb
  • Disappear completely
  • Doing something with a lot of energy
  • Not here; far from here; in a different direction
  • To a different area, location

behind

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US / bɪˈhaɪnd /

UK / bɪˈhaɪnd /

A1
  • adjecitve
  • Concerning a later or slower time than expected
  • Being in a losing position in a sporting event
  • Being in the past; old fashioned
  • adverb
  • Remaining
  • noun
  • The part of the body that one sits on
  • preposition
  • At or toward the back of someone or something
  • Supporting or helping someone

last

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US / lɑ:st /

UK / læst /

A1
  • adjecitve
  • Most recent; the latest
  • The one before
  • adverb
  • Final; with nothing following; after all others
  • Most recent; the latest
  • determiner
  • The one at the end
  • verb
  • To remain or continue for a certain period of time

see

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US / si: /

UK / si /

A1
  • verb
  • To go on a date with someone
  • To predict whether something is, or will be true
  • To understand what someone says
  • To use your eyes to look at something
  • To visit a place often for sightseeing or pleasure
  • To visit or meet with someone
  • To find out by waiting or looking
  • To watch (a game, movie or TV show)

could

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US / kəd /

UK / kʊd /

A1
  • other
  • Past form of 'can' to mean have ability
  • Used to ask for something politely, or to offer

next

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US / nekst /

UK / nɛkst /

A1
  • adverb
  • The one that follows another in time or order
  • At a time or place directly after the present one
  • noun
  • The one that follows after
  • adjecitve
  • Immediately after the previous one
  • First occurrence after the present one

semiconductor

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US / ˌsemikənˈdʌktə(r) /

UK / sɛmikənˈdʌktɚ /

B1
  • noun
  • Silicon chip used in computers

world

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US / wɜ:ld /

UK / wɜrld /

A1
  • noun
  • All the humans, events, activities on the earth
  • Political division due to some kind of similarity

sponsor

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US / ˈspɒnsə(r) /

UK / ˈspɑ:nsə(r) /

B1
  • noun
  • Person that supports the passage of a new law
  • Person giving money for someone's education
  • verb
  • To support the passage of a new law
  • To help someone succeed by giving them money
  • To pay for an event, usually as an advertisement

complete

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US / kəm'pli:t /

UK / kəmˈplit /

A1
  • adjecitve
  • Being finished; done; achieved
  • Being as perfect and as total as could be
  • verb
  • To finish or reach the end of doing something

sixty

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US / 'sɪkstɪ /

UK / ˈsɪksti /

A1
  • number
  • 60

percent

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US / pə'sent /

UK / pɚˈsɛnt /

A2
  • adverb
  • One one-hundredth of a whole; the symbol %

car

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US / kɑ:(r) /

UK / kɑr /

A1
  • noun
  • A vehicle with wheels and engine to carry people

scientist

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US / ˈsaɪəntɪst /

UK / ˈsaɪəntɪst /

A2
  • noun
  • Person who is trained in a science

insulator

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US / ˈɪnsjuleɪtə(r) /

UK / ˈɪnsəleɪtə(r) /

B2
  • noun
  • Material with low conductivity

protect

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US / prə'tekt /

UK / prəˈtɛkt /

A1
  • verb
  • To defend someone or something from harm or danger

via

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US / ˈvaɪə /

UK / ˈvaɪə, ˈviə /

B1
  • preposition
  • By the means of using something
  • By going through, by way of

refinement

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US / rɪˈfaɪnmənt /

UK / rɪˈfaɪnmənt /

B1
  • noun
  • Act of changing slightly to make it better
  • Small but meaningful improvement to make very good

conventional

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US / kən'venʃənl /

UK / kənˈvɛnʃənəl /

B2
  • adjecitve
  • Following the common attitudes and practices

have

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US / həv /

UK / hæv /

A1
  • verb
  • To drink, smoke, eat or use something
  • To experience the effects of something
  • To organize an event, or join in an activity
  • To own, possess, or hold something
  • To cause to happen or produce a particular effect

lithium

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US / ˈlɪθiəm /

UK / ˈlɪθiəm /

A1
  • noun
  • Soft silver-white univalent element of the alkali metal group; the lightest metal known; occurs in s

end

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US / end /

UK / ɛnd /

A1
  • noun
  • The point where a process or activity stops
  • A point that marks the limit of something; finish
  • Goal or desired result
  • The tip, edge or limit of something
  • verb
  • To be the last part of something

without

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US / wɪˈðaʊt /

UK / wɪðˈaʊt, wɪθ- /

A1
  • preposition
  • Not with; not having

atomically

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US / əˈtɒmɪkli /

UK / əˈtɑːmɪkli /

A1

know

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US / nəʊ /

UK / noʊ /

A1
  • verb
  • To be familiar with a person or place, thing
  • To feel sure or be convinced about something
  • To discover or be aware of something
  • To be able to distinguish
  • To have knowledge of things

part

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US / pɑ:t /

UK / pɑ:rt /

A1
  • adjecitve
  • To some degree; half; not fully
  • noun
  • Division of a book
  • Ratio of something, e.g. 3 of gin, 1 of tonic
  • A line in a person's hair, made with a comb
  • Character an actor plays on stage, movie, or TV
  • Some, but not all of a specific thing
  • Role in causing something to happen
  • verb
  • To make a line in a person's hair, by using a comb
  • To move two things apart creating a space
  • To leave someone, or to break off a relationship

manage

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US / ˈmænɪdʒ /

UK / ˈmænɪdʒ /

A1
  • verb
  • To survive hardships and difficulties; to cope
  • To run or operate a business by directing others

browse

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US / braʊz /

UK / braʊz /

B2
  • verb
  • To look around for things, e.g. in a bookstore

his

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US / hɪz /

UK / hɪz /

A1
  • pronoun
  • Something belonging to a male person

relatively

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US / ˈrelətɪvli /

UK / ˈrɛlətɪvlɪ /

A2
  • adverb
  • In a manner comparing something to something else

before

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US / bɪˈfɔ:(r) /

UK / bɪˈfɔr,-ˈfor /

A1
  • adverb
  • At a time earlier than the present; previously
  • conjunction
  • In advance of something happening
  • preposition
  • In front of someone or something

problem

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US / ˈprɒbləm /

UK / ˈprɑbləm /

A1
  • adjecitve
  • Causing trouble
  • noun
  • Something difficult to deal with or causes trouble
  • Question to show understanding of a math concept

datum

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US / ˈdeɪtəm /

UK / ˈdetəm, ˈdætəm, ˈdɑtəm /

B1
  • noun
  • Item of factual information

break

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US / breɪk /

UK / brek /

A1
  • noun
  • Time you stop an activity before continuing
  • End of a relationship
  • An escape from a place such as a jail
  • (Lucky) advantage or benefit from something
  • Find a solution or answer to a problem or crime
  • Change in the weather
  • verb
  • To create a new record e.g. running the 100m dash
  • To form a crack in something
  • To burst or become damaged
  • To end a relationship
  • To escape from a place such as a jail
  • To train a wild animal e.g. a horse
  • To separate into pieces by force, or by dropping
  • To act against a law, rule, or promise
  • To become known suddenly, as in the news
  • To not do what you promised e.g. not keep promises
  • To solve a crime, or answer a problem
  • To stop functioning properly
  • To suddenly start, open or commence
  • To change in pitch suddenly, as in a voice
  • To fall on the shore, as in waves
  • To begin or change suddenly; the dawn or weather
  • To defeat by causing the person to lose their will

command

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US / kə'mɑ:nd /

UK / kəˈmænd /

A2
  • noun
  • Electronic order to a computer to do something
  • An order to control things or others
  • verb
  • To be able to see far from a certain location
  • To give an order; have control over others
  • To have or get (respect or attention)

sec

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US / sek /

UK / sɛk /

A1
  • noun
  • Shortened form of 'second'

upper

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US / ˈʌpə(r) /

UK / ˈʌpɚ /

B1
  • adjecitve
  • Located above others of the same kind
  • Being the northern part of a region
  • Being closer to the source of a river
  • noun
  • Drug that improves mood or increases energy
  • Something happy or encouraging
  • Top part of a shoe, other than the flat bottom

hear

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US / hɪə(r) /

UK / hɪr /

A1
  • verb
  • To be aware of sound; to perceive with the ear
  • To be told or find out information or facts
  • To consider or listen to a court case

notice

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US / 'nəʊtɪs /

UK / ˈnotɪs /

A1
  • noun
  • Time by when you must leave, e.g. if you are fired
  • Paper with an announcement, e.g. pinned to a board
  • verb
  • To become aware by sight, touch, or hearing

quartz

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US / kwɔ:ts /

UK / kwɔrts /

B2
  • noun
  • Hard mineral, that is used as jewellery

tech

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US / tek /

UK / tɛk /

A2
  • noun
  • Shortened form of 'technology' or 'technician'

silicon

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US / ˈsɪlɪkən /

UK / ˈsɪlɪkən, -ˌkɑn /

B2
  • noun
  • Mineral used in making steel and computer parts

feasible

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US / ˈfi:zəbl /

UK / ˈfizəbəl /

B2
  • adjecitve
  • Possible; that you can believe will work/succeed

competition

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US / ˌkɒmpəˈtɪʃn /

UK / ˌkɑmpɪˈtɪʃən /

A2
  • noun
  • Fighting against others to win something

with

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US / wɪð /

UK / wɪð, wɪθ /

A1
  • preposition
  • As an employee of a certain company
  • Against something or someone
  • By using something as a means
  • Due to; because of
  • Including
  • Possessing as a feature
  • Related to
  • (Of the manner/attitude by which you do something)
  • Used to express that people or things are together

georgia

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US / ˈdʒɔ:dʒə /

UK / ˈdʒɔrdʒə /

A1
  • noun
  • A republic in Asia Minor on the Black Sea separated from Russia by the Caucasus mountains; formerly
  • other
  • A state in southeastern United States; one of the Confederate states during the American Civil War

terahertz

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US / ˈterəhɜːts /

UK / ˈterəˌhərts /

A1
  • other
  • One trillion periods per second

exist

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US / ɪɡ'zɪst /

UK / ɪɡˈzɪst /

A1
  • verb
  • To be present, alive or real

information

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US / ˌɪnfəˈmeɪʃn /

UK / ˌɪnfɚˈmeʃən /

A1
  • noun
  • Collection of facts and details about something

since

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US / sɪns /

UK / sɪns /

A1
  • adverb
  • At a point before the present time
  • conjunction
  • For this reason; because
  • preposition
  • From the time in the past that

never

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US / 'nevə(r) /

UK / ˈnɛvɚ /

A1
  • adverb
  • Not ever; not at any time

light

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US / laɪt /

UK / laɪt /

A1
  • adjecitve
  • Being bright making it easy to see; not dark
  • Being pale and lacking darkness of color
  • Not heavy; weighing only a little
  • adverb
  • Carrying few bags when traveling
  • noun
  • A source of energy that makes a room or area bright
  • Way in which something or someone is understood
  • verb
  • To cause something to burn; put a burning match to
  • To provide a way to see ahead

standard

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US / 'stændəd /

UK / ˈstændəd /

A2
  • adjecitve
  • Being the accepted normal level of quality
  • (Of a language) being the most accepted in a place
  • noun
  • Official unit of measuring something
  • Principle of behaving in a moral way

benefit

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US / 'benɪfɪt /

UK / ˈbɛnəfɪt /

A2
  • noun
  • Good result or effect, something advantageous
  • verb
  • To have a good effect or be helpful

rich

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US / rɪtʃ /

UK / rɪtʃ /

A1
  • adjecitve
  • Having a lot of money or valuable possessions
  • Containing a lot of exciting events or experiences and therefore very interesting
  • (of a color, sound, smell, etc.) Pleasantly deep or strong
  • If food is rich, it contains a large amount of oil, butter, eggs, or cream.

yourself

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US / jɔ:ˈself /

UK / jʊrˈsɛlf, jɔr-, jor-, jə- /

A1
  • pronoun
  • Reflexive form of 'you', used for an emphasis

soon

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US / su:n /

UK / sun /

A1
  • adverb
  • At a time not long from now

limit

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US / 'lɪmɪt /

UK / ˈlɪmɪt /

A2
  • noun
  • Point beyond which it is not possible to go
  • verb
  • To stop or prevent an increase past a point

under

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US / ˈʌndə(r) /

UK / ˈʌndɚ /

A1
  • adjecitve
  • In the same place as another thing, but lower
  • adverb
  • In a lower quantity or price than expected
  • preposition
  • According to the terms of an agreement or law
  • Managed or controlled by the authority of
  • Being of a lesser quality or amount than expected
  • Influenced or affected by something or someone
  • Less or lower in age, amount, size or number

start

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US / stɑ:t /

UK / stɑrt /

A1
  • noun
  • First time or place that a thing exists; beginning
  • First opportunity to achieve something, e.g. a job
  • Sudden action or movement because you are scared
  • other
  • Beginning of something in place or time
  • verb
  • To do, be or happen for the first time; begin
  • To turn something on

well

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US / wel /

UK / wɛl /

A1
  • adjecitve
  • Being in a fortunate, good condition or state
  • Healthy and in good condition
  • adverb
  • In an acceptable, proper, or successful manner
  • In a complete, total, or full manner
  • A great and considerable degree
  • In a successful way, in a good or satisfactory way
  • exclamation
  • Used to begin or continue a particular statement
  • Used to show you want to start saying something
  • Used to express that you are waiting for a reply
  • You say this to change the topic of a conversation
  • Used to indicate you are making a final remark
  • noun
  • Long deep hole in the ground to get water
  • verb
  • To cause your eyes to fill with tears

range

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US / reɪndʒ /

UK / rendʒ /

A2
  • noun
  • Cooking stove with multiple burners
  • Given distance from a point; how far plane can fly
  • Large grassy area where cattle wander and feed
  • Group or chain of mountains
  • Set of things with something in common
  • Limits within which something extends or varies
  • A set of products, e.g. so that people can choose
  • verb
  • To cover an area from one point to another
  • To extend to or vary within given limits
  • To put things in a row or in line
  • To wander or explore

fully

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US / 'fʊlɪ /

UK / ˈfʊli /

A1
  • adverb
  • Completely or entirely

cool

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US / ku:l /

UK / kul /

A1
  • adjecitve
  • Steady and calm when facing difficulties
  • Almost cold; not warm or hot
  • Smart or stylish in a way (young) people admire
  • Unfriendly in an indirect way; distant
  • verb
  • To make something decrease in temperature
  • (Of an emotion, etc.) to become less strongly felt

individual

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US / ˌɪndɪˈvɪdʒuəl /

UK / ˌɪndəˈvɪdʒuəl /

A2
  • adjecitve
  • Made for use by one single person
  • Having a distinct manner different from others
  • noun
  • Single person, looked at separately from others

manufacture

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US / ˌmænjʊ'fæktʃə(r) /

UK / ˌmænjəˈfæktʃɚ /

A2
  • verb
  • To produce large numbers of products in a factory
  • To create a story or explanation that is not true

conductor

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US / kənˈdʌktə(r) /

UK / kənˈdʌktɚ /

A2
  • noun
  • Material which can transfer electricity through it
  • Person who leads a musical group
  • Employee in charge of a train, bus etc.

few

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US / fju: /

UK / fju /

A1
  • pronoun
  • Not many, a small number

molecule

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US / ˈmɒlɪkju:l /

UK / ˈmɑlɪˌkjul /

B2
  • noun
  • Two or more atoms chemically combined

overall

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US / ˌəʊvər'ɔ:l /

UK / ˈovɚˌrɔl /

A2
  • adjecitve
  • Viewed as a whole; in general, not as details

talk

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US / tɔ:k /

UK / tɔk /

A1
  • noun
  • Style of speaking
  • Discussion between two countries
  • Giving information in front of people; lecture
  • Saying things or ideas to someone with words
  • verb
  • To make a formal speech about something
  • To say things or ideas to someone with words

somewhere

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US / 'sʌmweə(r) /

UK / ˈsʌmˌhwɛr, -ˌwɛr /

A1
  • adverb
  • At or to an unknown or unnamed place

adoption

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US / ə'dɒpʃn /

UK / ə'dɑ:pʃn /

A2
  • noun
  • Act of accepting and starting a new practice

for

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US / fə(r) /

UK / fɔr,fə /

A1
  • preposition
  • Used to show the purpose, or need of something

terrace

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US / ˈterəs /

UK / ˈtɛrɪs /

B1
  • noun
  • Flat area next to a building to sit and relax

card

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US / kɑ:d /

UK / kɑ:rd /

A1
  • noun
  • One of 54 pieces of paper used in a game of cards
  • Small piece of paper or plastic used as ID
  • verb
  • (Golf) to record how many hits you took

stuff

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US / stʌf /

UK / stʌf /

A1
  • noun
  • Generic description for things, materials, objects
  • verb
  • To push material inside something, with force

wonder

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US / 'wʌndə(r) /

UK / ˈwʌndɚ /

A1
  • noun
  • Surprise caused by experiencing something amazing
  • verb
  • To feel curious about something
  • To think or consider about something over time

just

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US / dʒʌst /

UK / dʒʌst /

A1
  • adjecitve
  • Proper or appropriate; as is deserved
  • Doing or being what is right or fair
  • Legally correct; having enough evidence
  • adverb
  • Almost; nearly
  • Exactly at the time of
  • Exactly (the same as, like)

hour

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US / 'aʊə(r) /

UK / aʊr /

A1
  • noun
  • 60 minutes
  • Particular time of the day
  • Fixed, regularly occurring time

head

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US / hed /

UK / hɛd /

A1
  • noun
  • Counter for the number of cattle
  • Natural mental ability or intelligence
  • Leader or person with the greatest authority
  • Mind; mental ability; mental state
  • Side of a coin with a head on it
  • Top part of your body with eyes and a mouth
  • Starting point of something, e.g. a river
  • verb
  • To hit a ball with your head in a game
  • To be first or at the front or top (e.g. a list)
  • To travel or move toward a particular place; To go in a particular direction
  • To become the leader of something
  • To lead or be responsible for something

much

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US / mʌtʃ /

UK / mʌtʃ /

A1
  • adjecitve
  • Very; to a high level or degree
  • adverb
  • A lot; large amount; a high degree of
  • Nearly; basically
  • On many occasions; often
  • noun
  • A large amount; a great quantity

strong

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US / strɒŋ /

UK / strɔŋ /

A1
  • adjecitve
  • (Of tea or beer) dark or thick
  • Having big muscles; physically powerful

consumption

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US / kənˈsʌmpʃn /

UK / kənˈsʌmpʃən /

B1
  • noun
  • The act of buying and using products
  • The act of using energy, food or materials; the amount used
  • A serious disease of the lungs

such

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US / sʌtʃ /

UK / sʌtʃ /

A1
  • determiner
  • Being similar to
  • (Thing) as previously stated or referred to
  • adverb
  • (Used to emphasize the quality of an adjective)

check

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US / tʃek /

UK / tʃɛk /

A1
  • adjecitve
  • Decorated with squares made up of lines
  • noun
  • Paper showing how much you owe at a restaurant
  • Printed piece of paper you sign to pay for things
  • A mark on a form, equivalent to 'yes'; tick
  • Mark used to show that something is correct
  • Procedure to prevent errors or control something
  • verb
  • To confirm the details of something are correct
  • To leave your things with staff who look after it
  • To examine something to see if something is wrong
  • To examine in order to prevent errors/a problem

charge

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US / tʃɑ:dʒ /

UK / tʃɑrdʒ /

A2
  • noun
  • An attack by running quickly toward someone
  • A price for a service or goods
  • When a battery has a certain amount of electricity
  • Amount of money you pay for a service
  • verb
  • To run quickly toward someone to attack them
  • To ask for money as a price for a service or goods
  • To put electricity in a battery
  • To give responsibility to take care of or manage
  • To state that someone has committed a crime

cycle

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US / ˈsaɪkl /

UK / ˈsaɪkəl /

A2
  • noun
  • Series of regular and repeated actions
  • Bicycle, bike
  • verb
  • To go through a series of events repeatedly
  • To ride on a bicycle

send

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US / send /

UK / sɛnd /

A1
  • verb
  • To cause to behave or respond in a particular way
  • To cause mail or packages to go to another place
  • To move something quickly in a particular way
  • To give information or greetings to someone

relax

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US / rɪˈlæks /

UK / rɪˈlæks /

A1
  • verb
  • To calm or quiet yourself, or stop worrying
  • To release the tightness in muscles
  • To make a rule or law less strict

why

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US / waɪ /

UK / hwaɪ, waɪ /

A1
  • adverb
  • Question word to ask for a reason
  • exclamation
  • (Used to express surprise or approval)

technology

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US / tek'nɒlədʒɪ /

UK / tɛkˈnɑlədʒi /

A2
  • noun
  • Use or knowledge of science in industry etc.

frequency

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US / 'fri:kwənsɪ /

UK / ˈfrikwənsi /

B1
  • noun
  • Number of repetitions of (radio or sound) wave
  • How often something happens

electromechanical

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US / ɪ'lektrəʊmɪ'kænɪkəl /

UK / ɪˌlektroʊmə'kænɪkəl /

A1
  • other
  • Of or relating to or involving an electrically operated mechanical device

through

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US / θru: /

UK / θru /

A2
  • adjecitve
  • having finished using or doing something
  • adverb
  • From the beginning of something until the end
  • preposition
  • Over, in, across an entire thing or place
  • Allowing you to pass between, or to
  • By a particular way or process; by the use of

test

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US / test /

UK / test /

A1
  • noun
  • A medical examination
  • Action to establish the truth or nature of
  • Examination; questions to measure knowledge
  • verb
  • To be given a medical examination
  • To try to establish the truth or nature of
  • To ask a series of questions to measure knowledge

specifically

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US / spəˈsɪfɪkli /

UK / spəˈsɪfɪkli /

A2
  • adverb
  • As regards a particular thing; closely related to
  • In particular

conductive

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US / kənˈdʌktɪv /

UK / kənˈdʌktɪv /

A1
  • adjecitve
  • Having the quality of conducting heat, electricity

incredible

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US / ɪnˈkredəbl /

UK / ɪnˈkrɛdəbəl /

A2
  • adjecitve
  • Very good; amazing
  • Really good; amazing; great
  • Very hard to believe

report

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US / rɪ'pɔ:t /

UK / rɪˈpɔrt, ˈport /

A1
  • noun
  • Account of the necessary facts and information
  • The telling of news in the media
  • Official statement about something
  • verb
  • To submit a report or bill to the government
  • To write in a newspaper or speak on a news program
  • To state something officially
  • To officially present yourself to an authority
  • To describe something by telling it to others

eight

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US / eɪt /

UK / et /

A1
  • number
  • 8

green

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US / gri:n /

UK / ɡrin /

A1
  • adjecitve
  • Color of young leaves
  • Covered with vegetation, e.g. grass
  • Concerned about protecting the environment
  • The color of young leaves
  • Lacking in experience/knowledge due to being young
  • Being not fully grown or ripe, as in fruit
  • noun
  • Large grassy area
  • used as a part of a name of a place (UK)

mobility

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US / məʊˈbɪləti /

UK / moˈbɪliti /

C1
  • noun
  • Ability to move
  • Ability to move with ease

time

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US / taɪm /

UK / taɪm /

A1
  • noun
  • Speed at which music is played; tempo
  • Point as shown on a clock, e.g. 3 p.m
  • Number of hours, minutes needed to do something
  • Occasion when something happens
  • Period or occasion that something occurred
  • Period in history or the past
  • Something measured in minutes, hours, days, etc.
  • How long an event takes; duration
  • verb
  • To check speed at which music is performed
  • To choose a specific moment to do something
  • To measure how long an event takes, e.g. a race
  • To schedule something to occur at a specific moment

anywhere

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US / ˈeniweə(r) /

UK / ˈeniwer /

A1
  • adverb
  • To any extent or degree (often used with not)
  • In, at or to any place
  • other
  • Use to indicate limits or variation

quality

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US / 'kwɒlətɪ /

UK / ˈkwɑlɪti /

A2
  • noun
  • Feature associated with someone or something
  • High level of worth or excellence

grow

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US / ɡrəʊ /

UK / ɡro /

A1
  • verb
  • To get bigger and more mature; make plants do this
  • To improve; to develop better skills over time
  • To develop and become bigger or taller over time

field

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US / fi:ld /

UK / fild /

A1
  • noun
  • Area of study, such as physics or biology
  • Piece of land used to grow crops/raise animals
  • Open area of land, especially without buildings
  • Grassed area where you play some sports
  • verb
  • To respond to something or answer a question
  • To catch or stop a ball during a game

modern

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US / ˈmɔdən /

UK / ˈmɑdən /

A1
  • adjecitve
  • Of the present time; up to date; contemporary

amazing

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US / ə'meɪzɪŋ /

UK / ə'meɪzɪŋ /

A2
  • adjecitve
  • Surprising in a pleasing way
  • verb
  • To cause wonder; to surprise completely

generation

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US / ˌdʒenəˈreɪʃn /

UK / ˌdʒɛnəˈreʃən /

A2
  • noun
  • Act or process of producing or causing something
  • People born and living at about the same time

black

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US / blæk /

UK / blæk /

A1
  • adjecitve
  • Color of the sky on a dark night
  • noun
  • A person with dark skin, often of African origin
  • Person's name
  • verb
  • To fill in something to make it a very dark color

climb

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US / klaɪm /

UK / klaɪm /

A1
  • noun
  • A trip up something, e.g. a mountain
  • Increase or a rise toward a higher price or point
  • verb
  • To rise gradually and steadily to a higher point
  • To increase or rise toward a higher price or point

occur

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US / əˈkɜ:(r) /

UK / əˈkɚ /

A2
  • verb
  • To come to pass or to happen

text

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US / tekst /

UK / tɛkst /

A1
  • noun
  • Any form in which writing exists
  • Reading or audio passage, often a story or article
  • Written part of a book or other work
  • verb
  • To send a message by phone or other device

traditional

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US / trəˈdɪʃənl /

UK / trəˈdɪʃənəl /

A2
  • adjecitve
  • Involved in a custom or event common to a people

quantum

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US / ˈkwɒntəm /

UK / ˈkwɑ:ntəm /

B2
  • noun
  • The smallest unit or amount of energy

cold

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US / kəʊld /

UK / kold /

A1
  • adjecitve
  • Having a very low temperature
  • Being unfriendly or lacking emotion
  • noun
  • Illness of sneezing, coughing, and a sore throat

personal

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US / ˈpɜ:sənl /

UK / ˈpɚsənəl /

A2
  • adjecitve
  • Done by or to a particular person; individual
  • Concerning a person's private life or feelings

computer

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US / kəmˈpju:tə(r) /

UK / kəmˈpjutɚ /

A1
  • noun
  • Machine for storing data, accessing the internet

typical

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US / ˈtɪpɪkl /

UK / ˈtɪpɪkəl /

A2
  • adjecitve
  • Normal; usual; expected

require

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US / rɪ'kwaɪə(r) /

UK / rɪˈkwaɪr /

A2
  • verb
  • To demand that someone does something
  • To need to do something, to make it necessary

equipment

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US / ɪˈkwɪpmənt /

UK / ɪˈkwɪpmənt /

A2
  • noun
  • Tools or materials used to perform a task

first

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US / fɜ:st /

UK / fɚst /

A1
  • adjecitve
  • 1st; Coming before all others in time or place
  • noun
  • Something that has not happened before
  • Position of the winner of a competition

task

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US / tɑ:sk /

UK / tæsk /

A2
  • noun
  • Big or small piece of work someone has to do
  • verb
  • To be given something to do, e.g. wash dishes

interesting

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US / ˈɪntrəstɪŋ /

UK / ˈɪntrɪstɪŋ, -tərɪstɪŋ, -təˌrɛstɪŋ /

A1
  • adjecitve
  • Taking your attention; making you want to know
  • verb
  • To make someone want to know about something
  • To persuade to do, become involved with something

hard

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US / hɑ:d /

UK / hɑː(r)d /

A1
  • adjecitve
  • Difficult to do; difficult to understand
  • (Of facts) not able to be misunderstood; clear
  • (Of alcohol) strong
  • Involving or requiring lots of work, effort, care
  • Being full of pain, trouble, and problems
  • Strong
  • (Of edge) clear; sharp
  • Difficult to bend, break or cut; solid
  • adverb
  • With lots of force, power, or impact

that

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US / ðæt /

UK / ðæt, ðət /

A1
  • adjecitve
  • The person or thing being talked about
  • Used to identify something both the speakers know
  • adverb
  • Used to reinforce adjectives and adverbs
  • To such a degree
  • conjunction
  • Used to connect a noun clause
  • Used to introduce an adverbial clause
  • Used to introduce a noun clause
  • determiner
  • Used as a noun to refer to something
  • pronoun
  • Referring an object far away
  • Used to refer to the relative pronoun ‘which’

deposition

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US / ˌdepəˈzɪʃn /

UK / ˌdɛpəˈzɪʃən /

B2
  • noun
  • Removal of a person from his or her position
  • other
  • Testimony to be used in court

clever

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US / 'klevə(r) /

UK / ˈklɛvɚ /

A1
  • adjecitve
  • Funny in a way that shows intelligence
  • Showing intelligence; quick to understand or learn

resistance

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US / rɪ'zɪstəns /

UK / rɪˈzɪstəns /

A2
  • noun
  • Force that stops or slows movement of something
  • Refusal to accept something new or different

down

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US / daʊn /

UK / daʊn /

A1
  • adjecitve
  • Being sad, sick, or unhappy
  • Not operating, working, or functioning as expected
  • adverb
  • In a sitting or lying position
  • Towards or on the ground, floor, or bottom
  • Written or copied onto a piece of paper or book
  • noun
  • A period of play in American Football
  • The soft, smooth hairs that cover a bird's body
  • preposition
  • Along something's path, course, or direction
  • Going from a higher position to a lower position
  • verb
  • To eat or drink very quickly and without stopping

place

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US / pleɪs /

UK / ples /

A1
  • noun
  • Particular location, area or region
  • verb
  • To put someone in a particular type of situation
  • To put something in a certain location or position

then

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US / ðen /

UK / ðɛn /

A1
  • adverb
  • A time that is not now
  • Following another thing in time or arrangement
  • Following on reasonably from what was just stated
  • At that time, not now

example

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US / ɪgˈzɑ:mpl /

UK / ɪɡˈzæmpəl /

A1
  • noun
  • Thing, person which represents a category

behave

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US / bɪˈheɪv /

UK / bɪˈhev /

A2
  • verb
  • To act correctly
  • To act in a particular way
  • To react in a particular way in a given case

get

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US / ɡet /

UK / ɡɛt /

A1
  • verb
  • To become affected by illness or disease
  • To begin to feel or understand an emotion or idea
  • To send or bring someone or something home, etc.
  • To go somewhere to obtain something
  • To (cause to) do a particular thing
  • To obtain, receive or be given something
  • To currently have
  • To prepare for use
  • To understand something being said or read

what

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US / wɒt /

UK / hwɑt, hwʌt, wɔt, wʌt,hwət, wət /

A1
  • pronoun
  • Thing or things that; the same kind as
  • Used to emphasize something you are about to say
  • adjecitve
  • Used to refer to a particular amount, or number
  • Used to place emphasis on a particular quality
  • adverb
  • To a certain degree
  • determiner
  • Question words used for asking for information
  • exclamation
  • Used to express excitement, shock, or surprise
  • Used to ask people to repeat something they said

mean

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US / mi:n /

UK / min /

A1
  • adjecitve
  • Being good at
  • Nasty; unkind
  • Not liking to spend money; cheap; stingy
  • noun
  • Average of a set of numbers
  • verb
  • To express a particular idea or thought
  • To intend to do something in particular
  • To have a particular meaning or value

again

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US / ə'ɡen /

UK / əˈɡɛn /

A1
  • adverb
  • One more time, once more

phase

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US / feɪz /

UK / fez /

A2
  • noun
  • Different stages of the moon from new to full
  • Distinct part or step in a process
  • One stage of a process or series of stages
  • verb
  • To make happen in a gradual ordered way

people

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US / 'pi:pl /

UK / ˈpipəl /

A1
  • noun
  • Persons sharing culture, country, background, etc.
  • Men, Women, Children

everywhere

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US / ˈevriweə(r) /

UK / ˈevriwer /

A1
  • adverb
  • Every place

about

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US / ə'baʊt /

UK / əˈbaʊt /

A1
  • adverb
  • To be ready to; going to
  • Nearly; approximately; roughly
  • Near; next to; close to
  • In every direction; in the area of
  • preposition
  • Concerning or of (a topic)

suppose

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US / sə'pəʊz /

UK / səˈpoʊz /

A2
  • conjunction
  • What if
  • verb
  • To imagine or guess what might happen

discrete

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US / dɪˈskri:t /

UK / dɪˈskrit /

B2
  • adjecitve
  • Separate; composed of distinct parts

care

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US / keə(r) /

UK / kɛr /

A1
  • noun
  • Treatment you receive for your health or safety
  • Something that a person worries about
  • verb
  • To feel interest, concern, or worry
  • To look after someone or something

case

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US / keɪs /

UK / kes /

A1
  • noun
  • Container used to carry things, e.g. clothes
  • Set of facts about a crime
  • Set of facts about an event
  • Example or instance of something
  • verb
  • To find out about a place, as in planning to steal

ladder

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US / 'lædə(r) /

UK / ˈlædɚ /

B1
  • noun
  • Series of levels to go up in society or business
  • Device with a series of steps used for climbing

number

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US / ˈnʌmbə(r) /

UK / ˈnʌmbɚ /

A1
  • noun
  • Symbols such as 1, 2, 56, 793
  • Particular song or dance performed during a show
  • Total quantity or amount of things
  • verb
  • To put numbers on things
  • To assign a sequence within a group, series, set
  • To claim to be part of a larger group, series, set

cause

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US / kɔ:z /

UK / kɔz /

A2
  • noun
  • Belief, goal or organization that people support
  • Reason for
  • verb
  • To make something happen; create effect or result

poorly

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US / ˈpʊəli: /

UK / ˈpʊrli /

A1
  • adjecitve
  • Slightly ill; unwell
  • adverb
  • Badly; not enough; not sufficient

outperform

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US / ˌaʊtpəˈfɔ:m /

UK / ˌaʊtpərˈfɔ:rm /

C1
  • verb
  • To achieve more than other competitors

sit

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US / sɪt /

UK / sɪt /

A1
  • verb
  • To take an exam
  • To be in a resting position on a chair
  • To provide seating for people
  • To remain in a still position while being painted

energy

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US / 'enədʒɪ /

UK / ˈɛnədʒi /

A2
  • noun
  • Physical or mental strength

bunch

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US / bʌntʃ /

UK / bʌntʃ /

B1
  • noun
  • A group of things of the same kind
  • verb
  • To group people or things closely together
  • (Cloth) to gather/be gathered together in folds

like

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US / laɪk /

UK / laɪk /

A1
  • adjecitve
  • Being equal in status or kind to something else
  • Similar; the same
  • adverb
  • For example
  • preposition
  • Used as a filler; used to ad emphasis
  • In a way similar to the way something is done
  • Such as; for example
  • verb
  • To want to
  • To find something pleasing; to prefer something

catch

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US / kætʃ /

UK / kætʃ, kɛtʃ /

A1
  • noun
  • Amount of something that has been caught
  • Trick or something trying to deceive
  • verb
  • To stop something flying and hold it
  • To stop something and not let it go, e.g. animals
  • To get sick or get a disease from someone else
  • To find someone to do something, a task
  • To get stuck on or in something
  • To be trapped so you can’t escape
  • To be able to understand what someone is saying

leakage

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US / ˈli:kɪdʒ /

UK / ˈlikɪdʒ /

B1
  • noun
  • Escape of a fluid from some container

find

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US / faɪnd /

UK / faɪnd /

A1
  • noun
  • Object discovered by chance
  • Things that have been discovered from searching
  • verb
  • To become aware of something that is happening
  • To discover or meet by chance
  • To decide if someone is guilty of a crime, or not
  • To learn through study, research, or effort
  • To discover something by looking for it

happen

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US / 'hæpən /

UK / ˈhæpən /

A1
  • verb
  • To take place or occur

undo

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US / ʌnˈdu: /

UK / ʌnˈdu /

A2
  • verb
  • To open, untie or loosen something

different

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US / ˈdɪfrənt /

UK / ˈdɪfrənt /

A1
  • adjecitve
  • Not of the same kind; unlike other things

step

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US / step /

UK / stɛp /

A1
  • noun
  • Movement done as part of a particular dance
  • Distance covered by one movement of a leg; stride
  • One part or stage in a process
  • Sound made by the feet while walking; footstep
  • Flat horizontal piece that forms stairs
  • verb
  • To raise and moving the foot to put it down

week

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US / wi:k /

UK / wik /

A1
  • noun
  • Period of seven days from Sunday to Saturday

type

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US / taɪp /

UK / taɪp /

A1
  • noun
  • Printed letters or blocks used for printing them
  • Group of things or people sharing common features
  • verb
  • To identify something belonging to a group
  • To write by touching keys on a keyboard

even

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US / 'i:vn /

UK / ˈivən /

A1
  • adjecitve
  • Being equal in influence, power, possibility etc.
  • Being divided equally or fairly
  • (Of teams/contest) with similar chances of success
  • Smooth, level, or regular
  • Can be divided by 2; ending in 2, 4, 6, 8, or 0
  • At a regular, equally steady manner
  • Remaining steady and unchanging
  • adverb
  • (When this is surprising) as well; too
  • (Used to compare two things/stress the difference)
  • verb
  • To make something level; to flatten
  • To make something equal

compatibility

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US / kəmˌpætə'bɪlətɪ /

UK / kəmˌpætəˈbɪlətɪ /

B2
  • noun
  • Ability to get on (or be used) well together

hardly

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US / ˈhɑ:dli /

UK / ˈhɑ:rdli /

A2
  • adverb
  • Clearly or undoubtedly not; very little
  • Almost not; scarcely

thirty

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US / 'θɜ:tɪ /

UK / ˈθə:ti /

A1
  • number
  • 30

method

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US / 'meθəd /

UK / ˈmɛθəd /

A2
  • noun
  • (Organized and planned) way of doing something

watch

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US / wɒtʃ /

UK / wɑtʃ /

A1
  • noun
  • Period of time someone is responsible for guarding
  • Device you wear on your wrist that shows the time
  • Official warning statement, e.g. of bad weather
  • verb
  • To keep in check, manage, or control something
  • To look at something for entertainment, e.g. TV
  • To guard a place or people; protect child, etc.
  • To look at carefully to work out what is happening
  • To protect and care for someone or something

annual

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US / ˈænjuəl /

UK / ˈænjuəl /

A2
  • adjecitve
  • Happening once a year, or every year
  • noun
  • Book (in a series) released each year

exfoliation

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US / eksˌfoʊliˈeɪʃn /

UK / eksˌfoʊliˈeɪʃn /

C2
  • noun
  • Removal of layers of skin, etc.

fly

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US / flaɪ /

UK / flai /

A1
  • noun
  • Common flying insect, sometimes blue in color
  • Opening with fold of cloth hiding zipper on pants
  • verb
  • To move in the wind, e.g. a flag
  • To move at a high speed
  • To travel in a plane, helicopter, balloon etc.
  • To pilot people or items by plane
  • To travel through the air using wings

current

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US / 'kʌrənt /

UK / ˈkɚrənt, ˈkʌr- /

A2
  • adjecitve
  • Happening or being in the present time
  • noun
  • Electricity flowing through wires
  • Movement of water in a river, or air in the sky

fascinating

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US / ˈfæsɪneɪtɪŋ /

UK / ˈfæsəˌnetɪŋ /

B1
  • adjecitve
  • Having your attention fixated as though by a spell
  • Very interesting
  • verb
  • To attract or interest greatly

element

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US / 'elɪmənt /

UK / ˈɛləmənt /

A2
  • noun
  • Essential or particular part of something

cheer

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US / tʃiə /

UK / tʃɪr /

A2
  • noun
  • Feeling of happiness or optimism
  • A loud shout of encouragement or approval
  • A toast used when raising your glass to drink
  • verb
  • To give a loud shout of encouragement to someone
  • To make someone feel happier or less worried

bit

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US / bɪt /

UK / bɪt /

A1
  • noun
  • Device put in a horse's mouth to control it
  • Small piece of something
  • verb
  • (E.g. of fish) to take bait and be caught

take

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US / teɪk /

UK / tek /

A1
  • noun
  • Filming of a single scene for TV or the movies
  • verb
  • To accept something that is offered
  • To use a method of traveling, e.g. a bus or train
  • To use a camera to make (a photo)
  • To pick up something and go away with it
  • To study a subject in school
  • To attempt to pass (an exam)
  • To require a certain amount of time, money, space

its

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US / ɪts /

UK / ɪts /

A1
  • adjecitve
  • Referring to or belonging to ‘it’
  • determiner
  • Of something; belonging or related to something
  • other
  • Possessive form of “it”

solar

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US / 'səʊlə(r) /

UK / ˈsolɚ /

B1
  • adjecitve
  • Concerning the sun, or its heat

produce

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US / prə'dju:s /

UK / prəˈdus, -ˈdjus, pro- /

A1
  • noun
  • Fresh foods such as fruits and vegetables
  • verb
  • To grow something naturally
  • To make something appear
  • To manufacture something using machines
  • To control the making a movie or television show

carbide

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US / 'kɑ:baɪd /

UK / 'kɑ:baɪd /

C2
  • noun
  • Compound of carbon with an electropositive element

crucial

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US / 'kru:ʃl /

UK / ˈkruʃəl /

B1
  • adjecitve
  • Extremely important or necessary

regular

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US / ˈregjələ(r) /

UK / ˈrɛɡjəlɚ /

A2
  • adjecitve
  • Having an equal amount of space or time in between
  • Occurring or being done frequently
  • Being normal, usual, or average
  • noun
  • Customers who frequently visit a place
  • Soldier who has a permanent job in the army

add

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US / æd /

UK / æd /

A1
  • verb
  • To include as well
  • To put two things or numbers together, e.g. 2+2

workaround

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US / ˈwɜ:kəraʊnd /

UK / ˈwɜ:rkəraʊnd /

A1
  • noun
  • A method for overcoming a problem or limitation in a program or system.

effectively

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US / ɪˈfektɪvli /

UK / ɪˈfɛktɪvli /

B1
  • adverb
  • In a way that produces the desired result

show

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US / ʃəʊ /

UK / ʃo /

A1
  • noun
  • False display of love, emotion or action
  • An event for displaying or promoting goods
  • Play, opera or theater production
  • Presentation that is broadcast on TV or radio
  • verb
  • To be easily seen or displayed
  • To display your emotions or feelings
  • To let someone see something; display
  • To explain or teach how something is done
  • To lead someone somewhere; point them to something
  • To prove something to be true, correct
  • To reveal or allow something to be seen

else

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US / els /

UK / ɛls /

A1
  • adverb
  • Otherwise; if you fail to
  • (Of person place thing etc.) besides; in addition

professor

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US / prəˈfesə(r) /

UK / prəˈfɛsɚ /

A2
  • noun
  • Teacher who teaches at a college or university

ago

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US / əˈgəʊ /

UK / əˈgoʊ /

A1
  • adverb
  • At a specified length of time in the past

main

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US / meɪn /

UK / men /

A1
  • adjecitve
  • Most important; most often used

applicable

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US / əˈplɪkəbl /

UK / ˈæplɪkəbəl, əˈplɪkə- /

B1
  • adjecitve
  • Being appropriate to or suitable for something

minimal

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US / ˈmɪnɪməl /

UK / ˈmɪnəməl /

B1
  • adjecitve
  • The smallest possible; least

very

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US / 'verɪ /

UK / ˈvɛri /

A1
  • adjecitve
  • Concerning a large degree or amount
  • adverb
  • A lot; much; many
  • Used to stress or emphasize a noun

way

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US / weɪ /

UK / we /

A1
  • adverb
  • Used to emphasize the amount of something
  • noun
  • Particular aspect of something being thought about
  • One of various choices that could be made
  • Particular existing condition or state
  • (Often long) distance or length of time
  • How something is done
  • Route to go to a place
  • Small street
  • Usual behavior, emotions or habits of someone

they

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US / ðeɪ /

UK / ðe /

A1
  • pronoun
  • Two or more people, animals, or things

result

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US / rɪ'zʌlt /

UK / rɪˈzʌlt /

A2
  • noun
  • Something produced through tests or experiments
  • Final score of a competition, election or game
  • verb
  • To be the outcome of other causes and effects

device

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US / dɪˈvaɪs /

UK / dɪˈvaɪs /

A2
  • noun
  • Object, machine, or equipment for a specific use
  • Method of doing something; a way

work

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US / wɜ:k /

UK / wɚk /

A1
  • adjecitve
  • Activity completed in order to make money
  • noun
  • The product of some artistic or literary endeavor
  • Everything created by an author, artist, musician
  • Activity you do in order to make money
  • Place of employment
  • Final product or result of a some labor or effort
  • verb
  • To bring into a specific state of success
  • To be functioning properly, e.g. a car
  • To do your job in your company or workplace
  • To make an effort to do something
  • To operate a machine or device

link

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US / lɪŋk /

UK / lɪŋk /

A2
  • noun
  • Any one of the rings that are part of a chain
  • Connection between two or more things or people
  • Webpage item you click to go to another webpage
  • verb
  • To join or connect together

their

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US / ðɛː /

UK / ðer /

A1
  • determiner
  • Belonging to them

dissipation

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US / ˌdɪsɪˈpeɪʃn /

UK / ˌdɪsɪˈpeɪʃn /

B2
  • noun
  • Bad or immoral living, e.g. drinking

human

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US / 'hju:mən /

UK / ˈhjumən /

A1
  • adjecitve
  • Concerning or characteristic of people
  • noun
  • A person; a man, woman or child

rapid

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US / ˈræpɪd /

UK / ˈræpɪd /

B1
  • adjecitve
  • Moving or happening very quickly
  • noun
  • Rough and fast-moving part of a river

between

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US / bɪˈtwi:n /

UK / bɪˈtwin /

A1
  • preposition
  • From one person, thing, or place, to another
  • In the space that separates two objects
  • Among two or more people who share something

fast

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US / fɑ:st /

UK / fæst /

A1
  • adjecitve
  • In a way that is difficult to move or change
  • Moving or able to move quickly
  • Showing time that is later than the actual time
  • adverb
  • With a great deal of speed
  • noun
  • Period of time when a person chooses not to eat
  • verb
  • To refuse food for a long time

comfortable

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US / ˈkʌmftəbl /

UK / ˈkʌmfətəbəl, ˈkʌmftəbəl /

A2
  • adjecitve
  • Having more than enough e.g. money for your needs
  • Being relaxed, warm or happy

bring

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US / brɪŋ /

UK / brɪŋ /

A1
  • verb
  • To take or go with someone to a place

dollar

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US / ˈdɒlə(r) /

UK / ˈdɑ:lə(r) /

A1
  • noun
  • A basic unit of money equal to 100 cent

advertisement

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US / ədˈvɜ:tɪsmənt /

UK / ˌædvɚˈtaɪzmənt, ædˈvɚtɪs-, -tɪz- /

A2
  • noun
  • Poster, TV, film showing advantages of new product

space

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US / speɪs /

UK / spes /

A1
  • noun
  • Empty area kept for a specific reason, like a car
  • Empty area with nothing in it
  • Area in the sky where the stars are
  • Area between written words on a page
  • verb
  • To make a certain distance or time between

fridge

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US / frɪdʒ /

UK / frɪdʒ /

A2
  • noun
  • An electric cool box for keeping food fresh

speed

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US / spi:d /

UK / spid /

A2
  • noun
  • How fast or slow something is or is done
  • verb
  • To move quickly when completing an action
  • To drive a vehicle faster than laws allow

paper

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US / ˈpeɪpə(r) /

UK / ˈpeɪpər /

A1
  • adjecitve
  • Not existing in reality, or done infrequently
  • Made from the material that we use to make books
  • noun
  • Academic writing or a talk on a specific topic
  • Written test
  • Newspaper
  • Pages of a book are made from this

pretty

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US / 'prɪtɪ /

UK / ˈprɪti /

A1
  • adjecitve
  • Being attractive to the eye in a simple way
  • adverb
  • Very; to a great degree

accessible

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US / əkˈsesəbl /

UK / ækˈsɛsəbəl /

A2
  • adjecitve
  • Able to be entered, reached or used

chip

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US / tʃɪp /

UK / tʃɪp /

B1
  • noun
  • Small piece that has broken off (e.g. from cup)
  • Piece of computer hardware that does calculations
  • Thin piece of fried potato or other food
  • Act of hitting a ball high but not very far
  • verb
  • To break a small piece off something such as a cup
  • To break into small pieces, often with a tool
  • To hit or kick a ball high but not very far

technique

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US / tekˈni:k /

UK / tɛkˈnik /

A2
  • noun
  • Way of doing by using special knowledge or skill

lattice

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US / ˈlætɪs /

UK / ˈlætɪs /

C1
  • noun
  • Openwork structure of crossed strips of wood, etc.

approach

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US / ə'prəʊtʃ /

UK / əˈprəʊtʃ /

A2
  • noun
  • Means of reaching a place, often a road or path
  • Request of someone with a specific goal in mind
  • Specific way to handle a project, task, problem
  • verb
  • To get close to reaching something or somewhere
  • To request someone to do something specific

change

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US / tʃeɪndʒ /

UK / tʃendʒ /

A1
  • noun
  • Exchange of one set of clothes for another
  • Money in the form of coins instead of paper
  • Money returned after giving too much
  • Act of making or becoming something else
  • verb
  • To exchange one set of clothes for another
  • To exchange one kind of money for another
  • To replace something with another thing
  • To make or become something else
  • To go from one train, bus, etc. and go to another

identity

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US / aɪ'dentətɪ /

UK / aɪˈdɛntɪti /

B1
  • noun
  • Collection of qualities that makes a person

all

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US / ɔ:l /

UK / ɔl /

A1
  • adverb
  • Completely; totally
  • determiner
  • Being every one of something
  • pronoun
  • 100% of something; the complete amount

section

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US / 'sekʃn /

UK / ˈsɛkʃən /

B1
  • noun
  • A part of a whole
  • Specific area or region within a larger place
  • Specific group of people from a larger group
  • Part of a book, newspaper, etc.
  • verb
  • To divide something into smaller parts

account

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US / ə'kaʊnt /

UK / əˈkaʊnt /

A1
  • noun
  • An advantage
  • Arrangement with a bank to keep your money for you
  • An invoice for things bought
  • Arrangement whereby you can use online services
  • A description, often written, of events; report

nature

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US / 'neɪtʃə(r) /

UK / ˈnetʃɚ /

A1
  • noun
  • Person's character or particular way of behaving
  • Basic look, feel or function of something
  • Physical world, including plants, animals, rocks

huge

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US / hju:dʒ /

UK / hjudʒ /

A2
  • adjecitve
  • Very very large

celsius

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US / ˈselsiəs /

UK / ˈselsiəs /

B1
  • noun
  • Another name for 'centigrade'

move

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US / mu:v /

UK / muv /

A1
  • noun
  • Act of moving a playing piece in chess, etc.
  • An action; doing something
  • Step taken to achieve a goal
  • verb
  • To cause someone to have certain emotions
  • To cause something to change to a different place
  • To change where people live or a business operates
  • To take action to do or achieve something

atom

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US / 'ætəm /

UK / ˈætəm /

B1
  • noun
  • Smallest bit that matter can be broken down into

fusion

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US / ˈfju:ʒn /

UK / ˈfjuʒən /

B2
  • noun
  • Combining various things to make something new

simple

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US / 'sɪmpl /

UK / ˈsɪmpəl /

A1
  • adjecitve
  • Not hard to understand or do; not complex
  • Having only a few parts; not complex
  • Being ordinary or normal
  • Being plain; without a lot added for style

update

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US / ˌʌpˈdeɪt /

UK / ʌpˈdet /

B1
  • noun
  • Addition of a current version of something
  • New information or data to make more current
  • verb
  • To download the latest version of software
  • To make more current or modern

thank

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US / θæŋk /

UK / θæŋk /

A1
  • verb
  • To tell someone you are grateful to them

look

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US / lʊk /

UK / lʊk /

A1
  • noun
  • Person's beauty or physical attractiveness
  • Particular style of dress, clothes, or appearance
  • The way someone, something appears to be
  • Act of searching for or examining something
  • verb
  • To appear to be; seem

figure

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US / ˈfiɡə /

UK / ˈfɪɡjɚ /

A1
  • noun
  • Your body shape
  • Numbers in a calculation
  • Doll-like thing meant to represent a person
  • Picture or diagram giving information in a text
  • Person who is very important or famous
  • Shape of a person seen indistinctly or in outline
  • Amount that is expressed in numbers
  • verb
  • To appear in a game, play or event
  • To calculate how much something will cost
  • To understand after thinking; work out

build

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US / bɪld /

UK / bɪld /

A1
  • noun
  • Your physical shape; physique
  • verb
  • To establish e.g. a reputation, over time
  • To construct a house, office, factory

strange

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US / streɪndʒ /

UK / strendʒ /

A1
  • adjecitve
  • Unusual or odd; surprising because unexpected

fill

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US / fɪl /

UK / fɪl /

A1
  • noun
  • Act of filling; amount used to make something full
  • verb
  • To make something full
  • To move into all parts of an area
  • To repair a surface by adding a substance to it
  • To use (time); to do something during

possible

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US / ˈpɒsəbl /

UK / ˈpɑsəbəl /

A1
  • adjecitve
  • Being able or appropriate for a task or purpose
  • Having a chance of happening, or being true

would

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US / wʊd /

UK / wʊd /

A1
  • other
  • Used to indicate something imagined
  • Used to ask or request something politely
  • Verb used to indicate possibility, request etc.
  • Used to indicate a preference
  • Used to indicate a reaction
  • Indicates something that occurred repeatedly
  • Used to indicate willingness or ability to do

yet

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US / jet /

UK / jɛt /

A1
  • adverb
  • At a later time (used after ‘not’)
  • (Used to emphasize that thing is, will be greater)
  • Eventually; at a future time
  • Until now; up to the present
  • conjunction
  • Adding to what has been said, often as a contrast

wide

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US / waɪd /

UK / waɪd /

A1
  • adjecitve
  • Having a great distance from one side to the other
  • adverb
  • Fully; completely

milliamp

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US / mɒd /

UK / mɒd /

A1

record

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US / 'rekɔ:d /

UK / ˈrekərd /

A1
  • noun
  • Highest or most extreme level achieved
  • Round plastic disc on which music has been stored
  • History of a person's past actions or achievements
  • verb
  • To indicate a temperature, speed, etc.; register
  • To write down or say what happened
  • To put music, sounds onto a device to store it

belong

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US / bɪ'lɒŋ /

UK / bɪˈlɔŋ /

A1
  • verb
  • To be a welcomed as a new member of a group
  • To own something
  • To be in the right place or situation

can

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US / kæn /

UK / kən,kæn /

A1
  • noun
  • A metal container for storing food
  • other
  • Able to; have the skill to; have the time to
  • verb
  • To have permission to
  • To be possible to do
  • To preserve food by sealing it in a metal container

tiny

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US / 'taɪnɪ /

UK / ˈtaɪni /

A2
  • adjecitve
  • Very, very small

online

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US / ˌɒnˈlaɪn /

UK / ˌɑ:nˈlaɪn /

B1
  • adjecitve
  • Connected to the internet

achieve

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US / ə'tʃi:v /

UK / əˈtʃiv /

A2
  • verb
  • To succeed in doing good, usually by working hard

deposit

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US / dɪ'pɒzɪt /

UK / dɪˈpɑzɪt /

A2
  • noun
  • Concentration of mineral left by a river
  • Part payment so that an item will be kept for you
  • Amount of money that is put into a bank account
  • verb
  • (Of rivers) to leave a layer of minerals, etc.
  • To lay down of layers, e.g. of soil, over time
  • To place or put something down in a certain place
  • To put money or valuable items in a bank

measure

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US / ˈmeʒə(r) /

UK / ˈmɛʒɚ /

A1
  • noun
  • Plan to achieve a desired result
  • Tool used to calculate the size of something
  • verb
  • To determine the value or importance of something
  • To calculate size, weight or temperature of

subscribe

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US / səb'skraɪb /

UK / səbˈskraɪb /

B1
  • verb
  • To regularly pay to receive a service

but

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US / bət /

UK / bʌt,bət /

A1
  • conjunction
  • Used before you say something different, opposite

law

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US / lɔ: /

UK / lɔ /

A1
  • noun
  • Field of study that relates to the legal profession
  • A rule made and enforced by a government
  • System or rules made by the government

research

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US / rɪ'sɜ:tʃ /

UK / rɪˈsɚtʃ, ˈriˌsɚtʃ /

A2
  • noun
  • Study done to discover new ideas and facts
  • Work done to find or discover knowledge
  • verb
  • To study in order to discover new ideas and facts

microelectronic

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US / ˌmaɪkrəʊɪlɛkˈtrɒnɪk /

UK / ˌmaɪkroʊɪlɛkˈtrɑnɪk /

A1
  • adjecitve
  • Concerning or consisting of miniature electronic components

perform

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US / pə'fɔ:m /

UK / pɚˈfɔrm /

A1
  • verb
  • To carry out an action well or successfully
  • To entertain an audience by dancing, singing etc.

good

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US / ɡʊd /

UK / ɡʊd /

A1
  • adjecitve
  • Proper, appropriate or right
  • (Of an amount) enough; plenty
  • Excellent; high quality
  • Acting well or properly; of moral character
  • In a positive or happy emotional state
  • noun
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  • Subtitles section
  • This video was brought to you by Incogni.
  • Hi, welcome to another episode of ColdFusion.
  • Picture this, a phone that you don't have to charge for days, or a laptop that can last a week without recharging.
  • Well, that kind of thing is on the cards with what we're about to talk about in this episode.
  • Walt DeHeer may look like your average professor, but he and his team have been working for ten years to flip the world of computing on its head.
  • With their recent breakthrough at Georgia Tech University, we could see computers and phones that are up to ten times faster operating in the realm of terahertz.
  • Not only that, but they'd use less power and produce less heat.
  • His team's findings were published in the journal Nature.
  • People knew about graphene, it had been heavily studied in many different disciplines and surface scientists knew about it, chemists knew about it, but nobody had actually thought that this stuff might be good for electronics.
  • And so in two thousand one, we basically came to the idea that maybe graphene could be used for electronics, and that's how the whole story started really.
  • So just a heads up, this video may be a bit more technical than normal, but I did just find it fascinating.
  • So in this quick episode, let's check out how they did it, and what this means for us, and technology as a whole.
  • You are watching ColdFusion TV.
  • Today, semiconductors, specifically the element silicon, powers our world.
  • In the nineteen fifties, very clever scientists figured out how to manipulate silicon to behave like tiny switches.
  • You could join thousands of them together and program them to do things.
  • We call this a computer.
  • Over time, our whole modern world has been built on these tiny little silicon switches.
  • We call these tiny switches transistors, and humans have made incredible progress with silicon transistors.
  • Just look at Moore's Law, which states that the number of transistors in an integrated circuit doubles every two years.
  • Or even better yet, just look at the devices around you.
  • From your car, to your fridge, computer, phone, and TV, they're everywhere.
  • Over the past seventy years, the only thing that we really did was pack these transistors into ever tighter spaces to give us more processing power.
  • But the thing is, we're now just reaching the limits of silicon transistors in terms of speed, heat generation and miniaturization.
  • But what if we could make transistors even better, ten times better?
  • Enter graphene.
  • Silicon carbide, it's a crystal made of silicon and carbon atoms.
  • If you heat the silicon carbide up, the silicon evaporates and what's left over is the carbon.
  • So all these carbon molecule atoms are sitting on that surface and then they simply connect together to make this sheet of graphene.
  • I've talked about graphene a few times on the channel, but in summary, it's a two D material made from a uniform honeycomb lattice of carbon atoms, one layer thick.
  • Its structure allows electrons to move through it with minimal resistance.
  • And since an electrical current is just electrons, this property makes graphene one of the most conductive materials known to man.
  • It's also strong, light, and basically overall a wonder material.
  • The only problem was that up until ten years ago, it was pretty hard to make in a cost effective way.
  • But fortunately, growing graphene on silicon carbide, synthesizing it via chemical vapor deposition and liquid phase electromechanical exfoliation were the three graphene manufacturing breakthroughs that made it viable in the last decade.
  • And after that, the applications came through, one of the most famous of which was a graphene charging bank from Elexjet.
  • It could charge a massive ten thousand milliamp hours in thirty minutes, five times faster than the competition.
  • Reviewers around the world were stunned when it came out back in twenty twenty one.
  • It also boasted five times as many charge cycles as a regular lithium ion battery.
  • Okay, so you know Graphene is cool and it has its applications, but as a transistor, that makes no sense.
  • For the technically inclined, you might see that something doesn't add up straight away.
  • As mentioned, graphene is one of the best, most efficient, and most rapid conductors known to man.
  • But a traditional transistor is a semiconductor.
  • That means it's not quite a conductor or an insulator, but somewhere in between.
  • A transistor needs to fit the class of being a semiconductor, and that's because this in between property that semiconductors have allows them to be manipulated to turn on and off, like a switch.
  • In other words, it has to change between conducting and insulation.
  • So that's the major problem for a graphene transistor.
  • Its conductivity can never be switched off.
  • And well, that would make a pretty lousy switch.
  • The thing is, there's actually a workaround to this called bandgap engineering.
  • And this is where the genius comes in.
  • But first, we need to understand what a bandgap is.
  • Now I found this next part pretty interesting.
  • So we all know that materials are made of atoms, which have a nucleus, and electrons that move around it.
  • Electrons can only be in certain discrete layers, or shells, above the nucleus, which we can call bands.
  • Now imagine a ladder.
  • Think about the steps of the ladder as different electron shells around an atom's nucleus in a given material.
  • The lower steps are what we call the valence band.
  • This band is where electrons reside normally.
  • Electrons are comfortable here and they don't want to leave.
  • Now the upper steps belong to the conduction band.
  • At this level, conduction of electricity easily occurs when the electrons are here because they can just fly off.
  • Now, imagine a gap between the two sections of the ladder.
  • This gap represents the band gap.
  • In an insulator, this gap is relatively wide, so it takes a lot of effort for the electrons to get to the conduction band, so the material doesn't conduct electricity well.
  • In contrast, in a semiconductor, the band gap is narrower compared to an insulator.
  • Electrons can climb up, but with some external energy required.
  • This allows semiconductors to conduct electricity under certain conditions.
  • In metals, there's effectively no band gap.
  • Electrons are pretty much having a party and can move freely throughout the material.
  • And this is why metals are good conductors of electricity.
  • Graphene is a strange case because it conducts electricity better than anything else, but it's not a metal.
  • So scientists wanted to take advantage of the high conducting benefit of graphene, but also wanted to be able to make it stop conducting on command.
  • If this could be done, it would make for an amazing new kind of transistor.
  • Since two thousand and eight, scientists have been trying to use bandgap engineering to make graphene behave like a semiconductor.
  • They all gave it a good go, but just couldn't get the thing to work.
  • The resulting transistors performed poorly and were useless.
  • Walt and the researchers perfected an existing manufacturing technique and managed to achieve a high quality bandgap in graphene for the very first time.
  • Here's how it worked.
  • The method involves heating silicon carbide in an argon filled quartz tube.
  • Inside the tube is two silicon carbide layers, shown in green.
  • A high frequency AC current is run through a copper coil around the quartz tube, and this heats the layers to a thousand degrees Celsius through induction.
  • The heat causes the silicon, which is the white circles, to evaporate and, quote, leave behind a carbon rich surface that forms into graphene, end quote.
  • And that's shown in black.
  • The high frequency of the heating coil ensures even and robust graphene deposits.
  • The whole process is efficient, with the necessary materials like silicon carbide and quartz tubes being relatively inexpensive.
  • The components for the whole setup cost twenty dollars.
  • The scientists created individual transistors that, when measured and tested, outperformed current silicon chips in speed.
  • They were also successful in producing larger, robust semiconductor wafers.
  • Here's a quote from Tahir.
  • Quote, Our research is distinct from other approaches because we have produced large areas of semiconducting SEC on a deficit free, atomically flat silicon carbide terraces.
  • Silicon carbide is hardly developed
  • readily available electronic material that is fully compatible with conventional microelectronics processing methods."
  • So if all of that went over your head, what does this all mean?
  • What's the bigger picture?
  • Number one, the creation of semiconducting graphene.
  • This most recent paper, we started to figure out how to turn graphene into a semiconductor, because natural graphene is not a semiconductor.
  • The Georgia Tech team created graphene with a bandgap, meaning that this wonder material is finally applicable to microelectronics.
  • Number two, better computers.
  • The good thing about graphene is not only can you make things smaller and faster and with less heat dissipation, you're actually using properties of electrons that are not accessible in silicon.
  • So this is really a paradigm shift.
  • It's a different way of doing electronics.
  • The graphene semiconductor that was created had very high electron mobility, and this is crucial for high frequency, terahertz range electronics.
  • And for context, our chips today operate in the gigahertz range.
  • Higher electron mobility allows for faster switching of transistors, which is essential for improving the speed and efficiency of electronic devices.
  • Imagine your laptop or phone lasting for days at a time while being five times faster.
  • Number three, simple and cost effective methods.
  • This method involves standard equipment and relatively inexpensive materials.
  • It's also compatible with conventional chip fabrication methods, and this compatibility is essential for integrating into existing manufacturing processes.
  • That means it's scalable and economically feasible for broader adoption in the semiconductor industry.
  • And that's something that's pretty rare for such research breakthroughs.
  • Number four, the potential for quantum computing applications.
  • The team also noted that there's a potential for using this high mobility graphene in quantum computing.
  • The quantum mechanical wave properties of electrons in graphene is much more pronounced at low temperatures versus silicon.
  • And this could lead to new types of quantum devices and computing methods.
  • And this represents a paradigm shift from traditional silicon based electronics.
  • So with all of that being said, there is one downside that I haven't seen reported anywhere else when researching this.
  • The band gap for this graphene method is zero point six electron volts, and this is versus one point one electron volts typical in silicon.
  • So let me break down what that means.
  • While a smaller band gap could be beneficial for applications such as a new kind of solar panel, a CPU is another case.
  • If we use this graphene semiconductor as is in a CPU,
  • The smaller bandgap could lead to current leakage, and this is when a device still leaks a little bit of current when it's supposed to be in its off state.
  • This could increase power consumption and heat generation, undoing some of that wonder that graphene had in the first place.
  • But that being said, it's not a huge deal at this stage, and I'm sure that with time, the bandgap number will improve as they make refinements to the process.
  • If there's no more hiccups along the way, this event is massive and could change the field of computing as we know it.
  • I wish the team all the best.
  • Before we continue, let's hear a quick word from today's sponsor, Incogni.
  • You've probably noticed recently that you're getting more scam calls, text messages, and various phishing attempts.
  • So why does this happen?
  • Well, the main reason is that your personal information is being sold online without you even knowing it.
  • This information can be used to send unsolicited scams and advertisements.
  • They can even sell your browsing habits and even commit identity theft.
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  • Complete with updates on how the task is going.
  • So to protect yourself online, use the code COLDFUSION in the link below to get sixty percent off an annual Incogni plan.
  • Go to incogni.com slash coldfusion to get started.
  • Thanks to Incogni for supporting the channel.
  • Okay, now back to the video.
  • many, many things that are possible with graphene that are not possible with silicon.
  • You can connect it to biological molecules, for example.
  • You can interface it with something called molecular electronics, a whole bunch of stuff like that.
  • So I think we're looking at a whole new landscape opening up in electronics.
  • Okay, so that's the story of the world's first silicon graphene semiconductor.
  • If you did like that, feel free to subscribe.
  • There's plenty of other interesting stuff on this channel on science, technology and business.
  • My name is Dagogo, and you've been watching ColdFusion, and I'll catch you again soon for the next episode.
  • Cheers guys.
  • Have a good one.
  • Cold fusion.
  • It's new thinking.