Nasa releases videos of its Perseverance rover landing on Mars - BBC News
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constant
US / 'kɒnstənt /
•UK / ˈkɑnstənt /
- adjecitve
- Happening frequently or without pause
- noun
- Thing that happens always or at a regular rate
system
US / 'sɪstəm /
•UK / ˈsɪstəm /
- adjecitve
- Working in an organized, logical way
- noun
- Set of organized, planned ideas that work together
begin
US / bɪ'ɡɪn /
•UK / ˈbeɡɪn /
- verb
- To do the first part of an action; to start
per
US / pə(r) /
•UK / pɚ /
- preposition
- In the manner directed or suggested
- For each; during each
land
US / lænd /
•UK / lænd /
- noun
- Region or country
- Earth; the ground
- verb
- To arrive or cause a boat to arrive at the shore
- To obtain or get something that you wanted
- To (cause to) come down to the ground safely
- To cause to arrive in a specific place or state
set
US / set /
•UK / sɛt /
- adjecitve
- Prepared for something; ready
- noun
- Complete group of something
- Place where a television show or movie is filmed
- Group of games in a tennis match
- Device that receives radio or television signals
- verb
- To make a clock state or ring at a particular time
- To decide upon or choose something
- To make something ready for use (e.g. table)
- To decide on a price for something
- To become hard (of glue, concrete etc.)
- To be located in a specific place or time
- To put (e.g. a vase) down carefully in a place
- To put someone in a certain condition or state
- (Of the sun) to go lower than the horizon
start
US / stɑ:t /
•UK / stɑrt /
- 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
maneuver
US / mə'nu:və /
•UK / məˈnuvɚ, -ˈnju- /
- noun
- Military movement of troops
- verb
- To move troops in a battle
velocity
US / və'lɒsətɪ /
•UK / vəˈlɑsɪti /
- noun
- Speed in a given direction
touchdown
US / ˈtʌtʃdaʊn /
•UK / ˈtʌtʃˌdaʊn /
- noun
- Getting ball over touch line in American football
- When a plane, etc. lands on the ground, etc.
seek
US / si:k /
•UK / sik /
- verb
- To ask someone for help
- To search for; try to find or do; look for
- To try to achieve something
the
US / ðə /
•UK / ðə /
- 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
lander
US / 'lændə /
•UK / 'lændə /
- other
- A space vehicle that is designed to land on the moon or another planet
radar
US / ˈreɪdɑ:(r) /
•UK / ˈredɑr /
- noun
- Radio device used to find the location of objects
solution
US / səˈlu:ʃn /
•UK / səˈluʃən /
- noun
- Mix of a liquid and a solid or a gas
- Way to solve or deal with a problem
filter
US / 'fɪltə(r) /
•UK / ˈfɪltɚ /
- noun
- Device to remove certain types of light, sound
- Device to remove unwanted things from liquid, gas
- verb
- To remove certain types of light, sound
- To remove unwanted substances from a liquid or gas
ready
US / 'redɪ /
•UK / ˈrɛdi /
- adjecitve
- Being likely or about to do something
- Being willing to do a task
- verb
- To prepare something for use or action
this
US / ðɪs /
•UK / ðɪs /
- 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
valid
US / 'vælɪd /
•UK / ˈvælɪd /
- adjecitve
- Being in effect or in force, often legally
- Reasonable; based on sound assumptions
- Working correctly; producing results
surface
US / 'sɜ:fɪs /
•UK / ˈsɚfəs /
- 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.
mar
US / mɑ:(r) /
•UK / mɑ:r /
- noun
- 3rd month of the year
- verb
- To spoil the appearance/atmosphere of something
relative
US / ˈrelətɪv /
•UK / ˈrɛlətɪv /
- adjecitve
- Measured or considered in comparison to another
- (Grammar) referring to words that appear earlier
- noun
- Members of the family
- Humans or animals sharing the same family history
safely
US / ˈseɪfli /
•UK / ˈseflɪ /
- adverb
- Out of danger
half
US / hɑ:f /
•UK / hæf, hɑf /
- adjecitve
- Not complete
- adverb
- Partly; somewhat
- noun
- One of two equal periods of game time in a sport
- The part you get when one is divided into two;
perform
US / pə'fɔ:m /
•UK / pɚˈfɔrm /
- verb
- To carry out an action well or successfully
- To entertain an audience by dancing, singing etc.
now
US / naʊ /
•UK / naʊ /
- 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
initialization
US / ɪˌnɪʃəlaɪ'zeɪʃn /
•UK / ɪˌnɪʃəlaɪ'zeɪʃn /
- noun
- The starting of a process
slow
US / sləʊ /
•UK / sloʊ /
- adjecitve
- Lacking activity, busyness or excitement
- (Clock) showing time earlier than the actual time
- Having difficulty understanding simple things
- Moving or happening without speed; not fast
- verb
- To move, with less speed than before
- To move or go without much speed
our
US / 'aʊə(r) /
•UK / aʊr /
- determiner
- Belonging to us
life
US / laɪf /
•UK / laɪf /
- noun
- All the living things e.g. animals, plants, humans
- Period of time things live, from birth to death
signal
US / 'sɪɡnəl /
•UK / ˈsɪɡnəl /
- adjecitve
- Most important or most noticeable
- noun
- Movement of a hand or other means to send messages
- Act/sound that tells people to do/start something
- Road-side lights that direct traffic to go or stop
- Sound and light waves carrying TV and radio data
- verb
- To be evidence/an indication something will happen
- To make a noise or motion to tell someone to start
currently
US / ˈkʌrəntli /
•UK / ˈkʌrənt(ə)li /
- adverb
- Happening or being in the present time
safety
US / ˈseɪfti /
•UK / ˈsefti /
- noun
- Device on a gun to prevent accidental shooting
- State of being free from harm or danger
significant
US / sɪgˈnɪfɪkənt /
•UK / sɪɡˈnɪfɪkənt /
- adjecitve
- Large enough to be noticed or have an effect
- Having meaning; important; noticeable
- (Statistics) being clearly different
lock
US / lɒk /
•UK / lɑ:k /
- noun
- Small portion of your hair that hangs together
- Place on a door, etc. that you close with a key
- verb
- To become fixed in place and hard to move
- To use a key, code so others can't open something
past
US / pɑ:st /
•UK / pæst /
- 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
continue
US / kən'tɪnju: /
•UK / kənˈtɪnju /
- verb
- To do something without stopping, or after pausing
- To start doing again after a break, pause, or stop
crane
US / kreɪn /
•UK / kren /
- noun
- Water bird characterized by its long neck and legs
- Tall machine that lifts heavy objects in the air
- verb
- To stretch (neck) or lean to get better view
subsonic
US / ˌsʌbˈsɒnɪk /
•UK / ˌsʌbˈsɑ:nɪk /
- other
- (Of speed) Less than that of sound in a designated medium
confirmation
US / ˌkɒnfəˈmeɪʃn /
•UK / ˌkɑ:nfərˈmeɪʃn /
- noun
- Approval or check of something
- Statement something is real, true or accurate
terrain
US / təˈreɪn /
•UK / təˈren /
- noun
- Characteristics (e.g. rough) of a piece of land
descend
US / dɪˈsend /
•UK / dɪˈsɛnd /
- verb
- To go down; to move from a higher to a lower place
separate
US / 'sepəreɪt /
•UK / 'sepəreɪt /
- adjecitve
- Being different from or unrelated to another
- verb
- To divide two things by being in between them
- To live away from your husband or wife
- To move things away from each other
altitude
US / 'æltɪtju:d /
•UK / ˈæltɪˌtud,-ˌtjud /
- noun
- Height of something above sea level
heat
US / hi:t /
•UK / hit /
- 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
deploy
US / dɪˈplɔɪ /
•UK / dɪˈplɔɪ /
- verb
- To put into position (often a military operation)
sand
US / sænd /
•UK / sænd /
- noun
- Area composed of tiny pieces of rock near an ocean
- Small pieces of rock that make beaches and deserts
- verb
- To cover a surface with grit e.g. roads
- To smoothen a surface with sandpaper
first
US / fɜ:st /
•UK / fɚst /
- adjecitve
- 1st; Coming before all others in time or place
- noun
- Something that has not happened before
- Position of the winner of a competition
get
US / ɡet /
•UK / ɡɛt /
- 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
about
US / ə'baʊt /
•UK / əˈbaʊt /
- 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)
current
US / 'kʌrənt /
•UK / ˈkɚrənt, ˈkʌr- /
- adjecitve
- Happening or being in the present time
- noun
- Electricity flowing through wires
- Movement of water in a river, or air in the sky
navigation
US / ˌnævɪˈgeɪʃn /
•UK / ˌnævɪˈɡeʃən /
- noun
- Act of finding and following the correct course
second
US / 'sekənd /
•UK / ˈsɛkənd /
- adjecitve
- 2nd; the one following first
- noun
- Unit of time; one sixtieth of a minute
- Short period of time that you wait for someone
- (Do) soon
that
US / ðæt /
•UK / ðæt, ðət /
- 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’
divert
US / daɪˈvɜ:t /
•UK / daɪˈvɜ:rt /
- verb
- To attract someone's attention from something
- To redirect something, such as a river or road
- To redirect the use of (goods or money)
vision
US / 'vɪʒn /
•UK / ˈvɪʒən /
- noun
- Ability to see; eyesight
- Something you see in your imagination or dreams
- Ability to plan for the future of something
mean
US / mi:n /
•UK / min /
- 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
deceleration
US / ˌdi:selə'reɪʃn /
•UK / ˌdi:selə'reɪʃn /
- noun
- Rate of decrease in speed
ground
US / graʊnd /
•UK / ɡraʊnd /
- noun
- Connection of electrical equipment to earth
- Place where people play particular sports
- Solid surface of the earth that we stand on
- verb
- To break (coffee, etc.) into tiny bits with machine
- To make loud jarring noise by pressing hard
- To make sharp or smooth through friction
- To press together with force making a sound
- To punish someone by not allowing them to go out
- To hit the bottom
- (Of boat) to hit the bottom so it cannot move
- To prevent a plane from taking off
- To place the ball over the goal line in rugby
perseverance
US / ˌpɜ:sɪˈvɪərəns /
•UK / ˌpɜ:sɪˈvɪərəns /
- noun
- Act of continuing to try despite difficulties
their
US / ðɛː /
•UK / ðer /
- determiner
- Belonging to them
engine
US / 'endʒɪn /
•UK / ˈɛndʒɪn /
- noun
- Machine that changes energy into mechanical motion
- The part of a train that pulls railway cars
produce
US / prə'dju:s /
•UK / prəˈdus, -ˈdjus, pro- /
- 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
kilometre
US / ˈkɪləmi:tə(r) /
•UK / ˈkɪləmiːtər /
- noun
- A metric unit of length equal to 1000 metres
look
US / lʊk /
•UK / lʊk /
- 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
both
US / bəuθ /
•UK / boθ /
- determiner
- Used to refer to two things at the same time
- pronoun
- Used to refer to two things at the same time
parachute
US / 'pærəʃu:t /
•UK / ˈpærəˌʃut /
- noun
- Cloth with strings for jumping from planes safely
- verb
- To drop supplies from a plane via parachute
- To jump from a plane while attached to a parachute
speed
US / spi:d /
•UK / spid /
- 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
accordion
US / əˈkɔ:diən /
•UK / əˈkɔ:rdiən /
- noun
- Musical instrument you squeeze with your hands
have
US / həv /
•UK / hæv /
- 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 /
- 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
meter
US / ˈmi:tə(r) /
•UK / ˈmitɚ /
- noun
- Unit of length equal to 100 cm or about 39 inches
- Device for measuring things e.g. gas
- Device to put money into to rent a parking place
- Rhythm of a poem
- verb
- To measure water, etc. when it has to be paid for
complete
US / kəm'pli:t /
•UK / kəmˈplit /
- adjecitve
- Being finished; done; achieved
- Being as perfect and as total as could be
- verb
- To finish or reach the end of doing something
shield
US / ʃi:ld /
•UK / ʃild /
- noun
- A family's coat of arms or insignia
- Device used to protect from a harmful force
- Large piece of metal, etc. carried by police, etc.
- Large piece of metal carried for protection
- verb
- To cover (e.g. your face) so as to hide from
- To cover from a dangerous or harmful force
gear
US / ɡɪə(r) /
•UK / ɡɪr /
- noun
- A speed selector connected to an engine
- Special clothes you use for a purpose
- Toothed wheel shifting power from engine to wheels
- verb
- To aim at or prepare yourself for something
prime
US / praɪm /
•UK / praɪm /
- adjecitve
- Concerning the highest in quality or value
- Concerning the highest level of achievement
- Most important, chief importance in value
- verb
- To get a person ready for; prepare someone
- To coat with paint to prepare it for the main coat
see
US / si: /
•UK / si /
- 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)
and
US / ənd /
•UK / ənd, ən,ænd /
- conjunction
- Used to refer to two or more things
- Plus; in addition; on top of that
- Used to introduce an action that follows another
come
US / kʌm /
•UK / kʌm /
- 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
subsequently
US / ˈsʌbsɪkwəntli /
•UK / ˈsʌbsɪˌkwɛntlɪ /
- adverb
- After something else has happened; as a result
from
US / frəm /
•UK / frʌm, frɑm,frəm /
- preposition
- Starting at a particular place, time or level
nine
US / naɪn /
•UK / naɪn /
- number
- 9
nominal
US / ˈnɒmɪnl /
•UK / ˈnɑmənəl /
- adjecitve
- Not having full power; in name only