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most

US / məʊst /

•

UK / most /

A1

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

isotope

US / ˈaɪsətəʊp /

•

UK / ˈaɪsətoʊp /

A1

noun
Chemical element nearly identical, but with differing weights

think

US / θɪŋk /

•

UK / θɪŋk /

A1

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

something

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

version

US / ˈvə:ʃən /

•

UK / ˈvɚʒən, -ʃən /

A2

noun
Different way that someone interprets something
New or different form of something
An updated form of some software

and

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

dozen

US / ˈdʌzn /

•

UK / ˈdʌzən /

A2

noun
12 people or things

anything

US / ˈeniθɪŋ /

•

UK / ˈɛniˌθɪŋ /

A1

pronoun
A thing of any kind

call

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

far

US / fɑ:(r) /

•

UK / fɑr /

A1

adjecitve
A long way away
Being a long way away
adverb
To a large degree or extent

nucleus

US / ˈnju:kliəs /

•

UK / ˈnu:kliəs /

B2

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

affect

US / ə'fekt /

•

UK / əˈfɛkt /

A2

verb
To cause a change in something else

electron

US / ɪˈlektrɒn /

•

UK / ɪˈlektrɑ:n /

B2

noun
A negatively charged particle

only

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

two

US / tu: /

•

UK / tu /

A1

number
2

can

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

towards

US / tə'wɔ:dz /

•

UK / 'təuədz, twɔ:dz /

A1

preposition
In the direction of someone or something

electrically

US / ɪ'lektrɪklɪ /

•

UK / ɪˈlɛktrɪklɪ /

A2

adverb
In a manner that uses or includes electricity

represent

US / ˌreprɪ'zent /

•

UK / ˌrɛprɪˈzɛnt /

A2

verb
To depict art objects, figures, scenes; to portray
To show or describe something in a particular way
To act on behalf of others in government
To act or speak for another person or other people

really

US / ˈri:əli /

•

UK / ˈriəˌli, ˈrili /

A1

adverb
Used to stress something that is said; definitely
In a true or accurate manner
Very

would

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

not

US / nɒt /

•

UK / nɑt /

A1

adverb
Word indicating the negative
(Used to form the negative of verbs)

our

US / 'aʊə(r) /

•

UK / aʊr /

A1

determiner
Belonging to us

now

US / naʊ /

•

UK / naʊ /

A1

adverb
At the present time or moment
Right away or in the next possible moment
Used to refer to something that just happened
Time between the present and a moment in the past
conjunction
Resulting from or because of something

planet

US / 'plænɪt /

•

UK / ˈplænɪt /

A2

noun
One of the bodies that orbit the sun

behaviour

US / bɪˈheɪvjə(r) /

•

UK / bɪˈhevjɚ /

A1

noun
The way a person or thing acts; manner

hazy

US / 'heɪzɪ /

•

UK / ˈhezi /

B2

adjecitve
Unclear, dark, or clouded due to dust, smoke etc.
Not being exact, certain, or clear

neutral

US / ˈnju:trəl /

•

UK / ˈnu:trəl /

B1

adjecitve
Something with pH value of 7
Having no positive or negative electrical charge
Not supporting either side in a war, etc.
Not taking either side in a debate; not involved
noun
Color that is dull and not bright, such as gray
The rest position for gears in a car or vehicle
Person/country not supporting a side in a war, etc.

same

US / seɪm /

•

UK / sem /

A1

adjecitve
Being equal in quality and amount
Identical; not different
Not changing; constant

tiny

US / 'taɪnɪ /

•

UK / ˈtaɪni /

A2

adjecitve
Very, very small

but

US / bət /

•

UK / bʌt,bət /

A1

conjunction
Used before you say something different, opposite

just

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)

proton

US / ˈprəʊtɒn /

•

UK / ˈproʊtɑ:n /

B2

noun
Tiny part of atom with positive electrical charge

charge

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

negatively

US / 'neɡətɪvlɪ /

•

UK / ˈnɛɡətɪvlɪ /

B1

adverb
In a harmful, unwanted or unhelpful manner

whizz

US / wɪz /

•

UK / hwɪz /

C1

noun
Soft swishing sound, made when moving fast

well

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

individual

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

much

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

positive

US / ˈpɒzətɪv /

•

UK / ˈpɑzɪtɪv /

A2

adjecitve
Showing agreement or support for something
Being sure about something; knowing the truth
Having the charge produced by electrons
Being good or useful
Showing that a chemical is present in a test

particle

US / ˈpɑ:tɪkl /

•

UK / ˈpɑrtɪkəl /

B1

noun
Adverb or preposition that joins with a verb
Tiny piece or quantity of something

true

US / tru: /

•

UK / tru: /

A1

adjecitve
Agreeing with the facts; not false; real or actual

actually

US / ˈæktʃuəli /

•

UK / ˈæktʃuəli /

A1

adverb
Used to add new (often different) information

here

US / hɪə(r) /

•

UK / hɪr /

A1

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

small

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

massive

US / ˈmæsɪv /

•

UK / ˈmæsɪv /

B1

adjecitve
Very big; large; too big

truth

US / tru:θ /

•

UK / truθ /

A2

noun
Real facts about something

after

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

many

US / 'menɪ /

•

UK / ˈmɛni /

A1

determiner
Used to refer a large number of things

will

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

divide

US / dɪ'vaɪd /

•

UK / dɪˈvaɪd /

A2

verb
To split numbers by another number, e.g. 6 / 2 = 3
To separate something into equal pieces

matter

US / 'mætə(r) /

•

UK / ˈmætɚ /

A1

noun
Material all things are made of that fills space
Problem or reason for concern
verb
To be of great importance; to count

least

US / li:st /

•

UK / list /

A1

adverb
In the smallest or lowest way
noun
Something that is of the lowest or smallest degree

element

US / 'elɪmənt /

•

UK / ˈɛləmənt /

A2

noun
Essential or particular part of something

get

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

attract

US / ə'trækt /

•

UK / əˈtrækt /

A2

verb
To make something move closer using magnetic force
To make someone notice and become interested in

mean

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

block

US / blɒk /

•

UK / blɑk /

A2

noun
Solid piece of material used for building
A piece of wood, chocolate etc.
Hard piece of wood, stone etc. with straight edges
Building made up of offices or apartments
Area of a city divided by four streets
verb
To stop from going forward or making progress

saturn

US / ˈsætɜ:n /

•

UK / ˈsætɜ:rn /

A1

other
A giant planet that is surrounded by three planar concentric rings of ice particles; the th planet f

then

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

mainly

US / ˈmeɪnli /

•

UK / ˈmenli /

A2

adverb
Mostly; usually; being the largest part

hydrogen

US / ˈhaɪdrədʒən /

•

UK / ˈhaɪdrədʒən /

B1

noun
Lightest of all chemical elements

about

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)

like

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

different

US / ˈdɪfrənt /

•

UK / ˈdɪfrənt /

A1

adjecitve
Not of the same kind; unlike other things

people

US / 'pi:pl /

•

UK / ˈpipəl /

A1

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

that

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’

what

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

nothing

US / 'nʌθɪŋ /

•

UK / ˈnʌθɪŋ /

A1

noun
Item of little or no value, importance, interest
Number or value of zero
pronoun
Not anything, not a single thing

number

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

happen

US / 'hæpən /

•

UK / ˈhæpən /

A1

verb
To take place or occur

each

US / i:tʃ /

•

UK / itʃ /

A1

determiner
Every one of two or more things
pronoun
Per one person or thing

yeah

US / jeə /

•

UK / ˈjɛə, ˈjæə, jɛ- /

A1

exclamation
Another way of saying 'yes'

could

US / kəd /

•

UK / kʊd /

A1

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

sun

US / sʌn /

•

UK / sʌn /

A1

noun
Light and heat coming from a large star in the sky
Hot shining star the Earth moves around
verb
To lie in the sunshine and enjoy its warmth

fundamental

US / ˌfʌndəˈmentl /

•

UK / ˌfʌndəˈmɛntl /

A2

adjecitve
Forming a necessary part, base, or core
noun
A basic part of something
(Music) the lowest note in a harmony

model

US / ˈmɒdl /

•

UK / ˈmɑ:dl /

A2

adjecitve
Being an excellent example of
noun
Person who wears fashion to show it to the public
A small scale copy of a full original
verb
To wear and display clothes at a fashion show
To make a small scale copy of a full original

have

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

part

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

orbit

US / 'ɔ:bɪt /

•

UK / ˈɔrbɪt /

B2

noun
Path an object takes as it circles another object
verb
To go around another object (often in space)

with

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

positively

US / ˈpɒzətɪvli /

•

UK / ˈpɑ:zətɪvli /

B1

adverb
In a manner showing agreement or support for
Definitely or certainly
In a good, beneficial way

negative

US / 'neɡətɪv /

•

UK / ˈnɛɡətɪv /

A2

adjecitve
Being harmful, unwanted or unhelpful
In mathematics, being less than zero
Focusing on the bad aspects; pessimistic
noun
The opposite to a positive electrical charge
In grammar, containing words such as 'no' or 'not'
Reply to a question or statement that means 'no'
Image on camera film used to make a photo

strictly

US / ˈstrɪktli /

•

UK / ˈstrɪktli /

A2

adverb
In compliance with the rules

both

US / bəuθ /

•

UK / boθ /

A1

determiner
Used to refer to two things at the same time
pronoun
Used to refer to two things at the same time

change

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

simple

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

all

US / ɔ:l /

•

UK / ɔl /

A1

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

comfortable

US / ˈkʌmftəbl /

•

UK / ˈkʌmfətəbəl, ˈkʌmftəbəl /

A2

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

bit

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

look

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

regular

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

build

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

building

US / ˈbɪldɪŋ /

•

UK / ˈbɪldɪŋ /

A1

noun
A structure with a roof and walls, e.g. a house
verb
To establish e.g. a reputation, over time
To construct a house, office, factory

heavy

US / 'hevɪ /

•

UK / ˈhɛvi /

A1

adjecitve
Greater in amount, degree, or severity than usual
Involving serious or strong emotions
Having a lot of weight

their

US / ðɛː /

•

UK / ðer /

A1

determiner
Belonging to them

atom

US / 'ætəm /

•

UK / ˈætəm /

B1

noun
Smallest bit that matter can be broken down into

everything

US / 'evrɪθɪŋ /

•

UK / ˈɛvriˌθɪŋ /

A1

pronoun
All of the things mentioned

they

US / ðeɪ /

•

UK / ðe /

A1

pronoun
Two or more people, animals, or things

very

US / 'verɪ /

•

UK / ˈvɛri /

A1

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

add

US / æd /

•

UK / æd /

A1

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

take

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

into

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

one

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

other

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

little

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

material

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

the

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

consist

US / kən'sɪst /

•

UK / kənˈsɪst /

A2

verb
To have as an essential, necessary or main part

this

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

how

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)

you

US / jʊ /

•

UK / ju /

A1

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

spin

US / spɪn /

•

UK / spɪn /

B1

noun
A dizzy feeling your head is turning around
A slant or hidden purpose, as in politicians' talk
A movement in a rapid turning motion
verb
To make a ball rotate when throwing it
To feel dizzy/confused, as in my head is spinning
To convert material such as cotton into thread
To move something in a rapid turning motion

neutron

US / ˈnu:ˌtrɔn, ˈnju:- /

•

UK / ˈnuˌtrɑn, ˈnju- /

A1

noun
Charge and mass about equal to a proton; enters into the structure of the atomic nucleus

opposite

US / ˈɔpəzit /

•

UK / ˈɑpəzɪt /

A2

adjecitve
Being totally different from
noun
Person, thing that is totally different to another
preposition
Across from or on the side facing something

make

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

outside

US / ˌaʊtˈsaɪd /

•

UK / aʊtˈsaɪd, ˈaʊtˌsaɪd /

A2

adverb
Beyond the limits or edges of some place, thing
noun
Area around or near something, such as a building
preposition
Beyond the limits or edges of some place, thing