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The Shocking Plan to Nuke the Moon (Project A119)

Video vocabulary

castle

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US / ˈkɑ:sl /

UK / ˈkæsl /

A2
  • noun
  • Large defensive building in historical times

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

concern

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US / kənˈsɜ:n /

UK / kənˈsɚn /

A2
  • noun
  • Company, firm or business
  • Feeling of worry or anxiety
  • verb
  • To be about a particular topic
  • To have a direct impact on someone
  • To be responsible or mixed up in; to be involved
  • To feel worry or anxiety

knowledge

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US / ˈnɒlɪdʒ /

UK / ˈnɑlɪdʒ /

A1
  • noun
  • Information, understanding, or skill

importantly

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US / ɪmˈpɔːtntli /

UK / ɪmˈpɔːrtntli /

A2
  • adverb
  • In an important way;

plus

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US / plʌs /

UK / plʌs /

A2
  • noun
  • A benefit or advantage
  • preposition
  • In addition; add
  • In addition to; Indicates a number above
  • Having a value greater than zero

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

too

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US / tu: /

UK / tu /

A1
  • adverb
  • In addition, also; with emphasis
  • Say that something is more than you want

totally

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US / ˈtəʊtəli /

UK / ˈtotl:ɪ /

A1
  • adverb
  • In a complete way; completely; absolutely

union

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US / 'ju:nɪən /

UK / ˈjunjən /

A2
  • noun
  • Act of joining two or more things into one
  • Marriage
  • Organization of workers to look after their needs

accuracy

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US / ˈækjərəsi /

UK / ˈækjərəsi /

A2
  • noun
  • Being exactly right; correctness

always

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US / 'ɔ:lweɪz /

UK / ˈɔlwez,-wɪz,-wiz /

A1
  • adverb
  • For a very long time
  • At all times; in every situation
  • For ever

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

already

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US / ɔ:lˈredi /

UK / ɔlˈrɛdi /

A1
  • adverb
  • Having happened or been done before this time

geological

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US / ˌdʒi:ə'lɒdʒɪkl /

UK / dʒɪəˈlɑdʒɪkl: /

B1
  • adjecitve
  • Concerning studies of the Earth's rocks and soil

dust

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US / dʌst /

UK / dʌst /

A2
  • noun
  • Fine dry powder that builds up on surfaces
  • verb
  • To apply a fine powder to, e.g. sugar to a cake
  • To wipe something to remove dirt

indeed

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US / ɪnˈdi:d /

UK / ɪnˈdid /

A2
  • adverb
  • Actually; in fact; in reality

itself

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US / ɪtˈself /

UK / ɪtˈsɛlf /

A1
  • pronoun
  • Referring to it

many

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US / 'menɪ /

UK / ˈmɛni /

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

pristine

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US / ˈprɪsti:n /

UK / prɪˈstiːn /

B1
  • adjecitve
  • Being in a natural and undamaged state

radiological

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US / ˌreɪdɪəˈlɒdʒɪkəl /

UK / ˌreɪdiəˈlɑdʒɪkəl /

A1
  • adjecitve
  • Concerning radiology

scenario

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US / sɪˈnɑː.ri.əʊ /

UK / səˈner.i.oʊ /

B1
  • noun
  • An imagined sequence of events in a plan/project

relate

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US / rɪ'leɪt /

UK / rɪˈlet /

A2
  • verb
  • To demonstrate a logical relationship between
  • To understand or sympathize with, e.g. a problem
  • To tell a story, or tell about a particular event

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

thousand

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US / ˈθaʊznd /

UK / ˈθaʊzənd /

A1
  • number
  • Number 1,000

silence

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US / 'saɪləns /

UK / ˈsaɪləns /

A2
  • noun
  • State of being quiet and not talking for a time
  • When there is not sound or noise; complete quiet
  • Refusal to discuss or talk about an issue
  • verb
  • To stop the noise that something is making
  • To prevent someone from expressing thoughts

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

attack

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US / ə'tæk /

UK / əˈtæk /

A2
  • noun
  • Act intended to hurt someone physically, mentally
  • verb
  • To try to destroy, beat, or injure

implicate

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US / 'ɪmplɪkeɪt /

UK / ˈɪmplɪˌket /

B2
  • verb
  • To show that person is involved, e.g. in a crime

speak

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US / spi:k /

UK / spik /

A1
  • verb
  • To be able to use a certain language
  • To use words to tell information, express thoughts

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

sway

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US / sweɪ /

UK / swe /

B2
  • noun
  • Power or influence to control a person or group
  • Action of moving slowly from side to side
  • verb
  • To change your opinion or position often
  • To influence a person's thoughts/opinion; persuade
  • To move slowly from side to side

either

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US / ˈaɪðə(r) /

UK / ˈiðɚ, ˈaɪðɚ /

A1
  • adjecitve
  • One of two (used when there is a choice of two)
  • adverb
  • (After negative statements) likewise, in addition
  • conjunction
  • Used as the first of two connected things
  • determiner
  • Used as the first of two connected things
  • pronoun
  • The one or the other

meaning

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US / ˈmi:nɪŋ /

UK / ˈminɪŋ /

A1
  • noun
  • Idea or thing represented by words or sentences
  • verb
  • To express a particular idea or thought
  • To intend to do something in particular
  • To have a particular intention or value

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

scientific

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US / ˌsaɪənˈtɪfɪk /

UK / ˌsaɪənˈtɪfɪk /

A2
  • adjecitve
  • Concerning academic study of the physical world

soviet

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US / ˈsəuviət,ˈsɔviət /

UK / ˈsoviˌɛt, -ɪt, ˈsɑvi-, ˌsoviˈɛt /

A1
  • adjecitve
  • Of or relating to or characteristic of the former Soviet Union or its people
  • noun
  • Elected government council in a communist country

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

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

exactly

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US / ɪgˈzæktli /

UK / ɪɡˈzæktli /

A1
  • adverb
  • No more and no less than; precisely

fail

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US / feɪl /

UK / fel /

A1
  • noun
  • A mark on a test showing you did not pass
  • verb
  • To be unsuccessful in passing a class or exam
  • To not do or provide something that is needed
  • To stop working or functioning; to break down
  • To not achieve a goal, or to go wrong

massive

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US / ˈmæsɪv /

UK / ˈmæsɪv /

B1
  • adjecitve
  • Very big; large; too big

race

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US / reɪs /

UK / res /

A2
  • noun
  • Speed contest between people, animals or vehicles
  • People who share physical features or culture
  • verb
  • To take part in a running or swimming competition
  • To move or go at a very fast pace
  • To take someone, something to a place very quickly

science

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US / 'saɪəns /

UK / ˈsaɪəns /

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

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

thrust

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US / θrʌst /

UK / θrʌst /

B2
  • noun
  • Movement of (e.g. a knife) towards someone
  • Primary purpose or meaning of something
  • Power or force that an engine produces
  • Strong or forceful push
  • verb
  • To move (e.g. a knife) forcefully towards someone
  • To push someone or something with great strength

worried

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US / ˈwʌrid /

UK / ˈwɜ:rid /

A1
  • adjecitve
  • Feeling troubled or concerned
  • verb
  • To cause concern or trouble over something
  • To feel concerned or troubled about something

divide

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US / dɪ'vaɪd /

UK / dɪˈvaɪd /

A2
  • verb
  • To split numbers by another number, e.g. 6 / 2 = 3
  • To separate something into equal pieces

imagine

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US / ɪ'mædʒɪn /

UK / ɪˈmædʒɪn /

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

planetary

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US / ˈplænətri /

UK / ˈplænɪˌtɛri /

B2
  • adjecitve
  • Concerning the orbital characteristics of a planet

million

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US / ˈmɪljən /

UK / ˈmɪljən /

A1
  • number
  • 1,000,000

poet

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US / ˈpəʊɪt /

UK / ˈpoʊət /

A2
  • noun
  • Person who writes poems

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

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

yield

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US / ji:ld /

UK / jild /

A2
  • noun
  • Amount of crops grown
  • Amount of profit you make
  • verb
  • To bend or break because of a strong force
  • To give way to someone or something else
  • To produce, usually in agriculture or business
  • To produce a certain amount of profit; result in
  • To total to a certain amount, as in a calculation

armstrong

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US / ˈɑːmˌstrɒŋ /

UK / ˈɑːrmˌstrɔːŋ /

A1

consider

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US / kən'sɪdə(r) /

UK / kənˈsɪdər /

A1
  • verb
  • To think carefully about something

explorer

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US / ɪkˈsplɔ:rə(r) /

UK / ɪkˈsplɔrɚ, -ˈsplor- /

A2
  • noun
  • Person who travels to places to discover more them

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

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

ever

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US / 'evə(r) /

UK / ˈɛvɚ /

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

explain

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US / ɪk'spleɪn /

UK / ɪkˈsplen /

A1
  • verb
  • To make clear or easy to understand by describing

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

mission

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US / 'mɪʃn /

UK / ˈmɪʃən /

B1
  • noun
  • A task or role someone is given to do
  • Special assignment given to a person or group
  • Group tasked with a specific duty
  • A task given to someone to gain or achieve
  • Religious group wishing to convert others
  • Housing for a religious group working overseas
  • Religious or charitable task in a foreign country

anxious

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US / ˈæŋkʃəs /

UK / ˈæŋkʃəs /

A1
  • adjecitve
  • Afraid of what may happen; worried and nervous
  • Wanting something badly

eight

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US / eɪt /

UK / et /

A1
  • number
  • 8

doubt

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US / daʊt /

UK / daʊt /

A1
  • noun
  • Not being sure of something; lack of certainty
  • verb
  • To question the truth or certainty of something

begin

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US / bɪ'ɡɪn /

UK / ˈbeɡɪn /

A1
  • verb
  • To do the first part of an action; to start

danger

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US / ˈdeɪndʒə(r) /

UK / ˈdendʒɚ /

A1
  • noun
  • The possibility of getting hurt, damaged, killed

incredible

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US / ɪnˈkredəbl /

UK / ɪnˈkrɛdəbəl /

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

opinion

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US / əˈpɪnjən /

UK / əˈpɪnjən /

A2
  • noun
  • Court judge's statement why a decision was made
  • A person's thoughts on a topic

nuke

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US / nju:k /

UK / nuk, njuk /

A1
  • verb
  • To attack a place with (nuclear) bombs

populate

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US / 'pɒpjʊleɪt /

UK / ˈpɑpjəˌlet /

A2
  • verb
  • To live in a particular area, as a group

prompt

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US / prɒmpt /

UK / prɑmpt /

B1
  • adjecitve
  • Fast; in a quick manner; without delay
  • noun
  • Message on a computer requiring attention
  • Encouragement to ask someone else to talk
  • verb
  • To display a message to requires a user to act
  • To say something to encourage someone else to talk
  • To remind an actor of his or her lines (words)
  • To cause something to occur; be the cause of

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)

soon

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US / su:n /

UK / sun /

A1
  • adverb
  • At a time not long from now

difficult

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US / 'dɪfɪkəlt /

UK / ˈdɪfɪˌkʌlt, -kəlt /

A1
  • adjecitve
  • Hard; not easy; you need to work hard to do it

flight

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US / flaɪt /

UK / flaɪt /

A2
  • noun
  • Act of leaving a place, usually to escape danger
  • Trip by plane, helicopter etc.

foundation

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US / faunˈdeiʃən /

UK / faʊnˈdeʃən /

C1
  • noun
  • Base or important starting point
  • Underground base on which building is constructed
  • Institution supported by a private fund
  • First cosmetic used when putting on makeup
  • Action of establishing an organization

object

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US / 'ɒbdʒɪkt /

UK / ˈɑbdʒɪkt /

A2
  • noun
  • Something you can see or touch, but is not alive
  • Goal or purpose of a particular plan or activity
  • The thing that the action of a verb acts upon
  • verb
  • To disagree; to protest against an idea or plan

mankind

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US / mænˈkaɪnd /

UK / ˈmænˌkaɪnd /

B2
  • noun
  • All humans thought of as one group; humanity

shoot

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US / ʃu:t /

UK / ʃut /

A2
  • noun
  • Emerging new part of a plant
  • verb
  • To kick or throw a ball at a goal
  • To fire a gun; injure or kill someone with a gun
  • To (cause to) fly away forcefully
  • To use a camera to record a film/take a photograph

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

wrap

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US / ræp /

UK / ræp /

B1
  • noun
  • Piece of clothing worn loosely on the shoulders
  • Thin bread filled with food and rolled
  • verb
  • To be or move around something
  • To cover something with paper or a cloth e.g. gift

atomic

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US / əˈtɒmɪk /

UK / əˈtɑ:mɪk /

B1
  • adjecitve
  • Concerning atoms

basis

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US / ˈbeɪsɪs /

UK / ˈbesɪs /

A2
  • noun
  • Main ingredient or part of something
  • Starting situation, fact, idea to develop from

crisis

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US / 'kraɪsɪs /

UK / ˈkraɪsɪs /

B1
  • noun
  • Unstable situation of extreme danger or difficulty

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

never

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US / 'nevə(r) /

UK / ˈnɛvɚ /

A1
  • adverb
  • Not ever; not at any time

romantic

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US / rəʊˈmæntɪk /

UK / roʊˈmæntɪk /

A2
  • adjecitve
  • Relating to courtship or love
  • Being impractical, unrealistic, or idealistic
  • Of or involving the ideas or values of romanticism
  • noun
  • People who like love, candlelit dinners, etc.
  • Person living in a fantasy-like world not reality

die

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US / daɪ /

UK / daɪ /

A1
  • noun
  • Cube with dots numbering 1-6 on it used in games
  • verb
  • To cease to function or work
  • (Of a thing) to stop being used or done
  • (Of a person) to stop living

land

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US / lænd /

UK / lænd /

A1
  • 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

launch

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US / lɔ:ntʃ /

UK / lɔntʃ, lɑntʃ /

A2
  • noun
  • Starting a new project; introducing new product
  • Act of firing rockets into the air
  • verb
  • To start a new project; start selling a product
  • To put a rocket into the air
  • To put a ship into the water for the first time

nuclear

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US / ˈnju:kliə(r) /

UK / ˈnukliɚ, ˈnju- /

A2
  • adjecitve
  • Concerning or involving the center of an atom

set

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US / set /

UK / sɛt /

A1
  • 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

specifically

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US / spəˈsɪfɪkli /

UK / spəˈsɪfɪkli /

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

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

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

soil

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US / sɔɪl /

UK / sɔɪl /

B1
  • noun
  • Conditions in which something develops
  • Mix of natural material in which plants grow
  • Land of a certain country
  • verb
  • To get or become dirty

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

glance

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US / glɑ:ns /

UK / glæns /

A2
  • noun
  • Quick or temporary look at
  • verb
  • To look somewhere quickly and then look away

for

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US / fə(r) /

UK / fɔr,fə /

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

reassure

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US / ˌri:əˈʃʊə(r) /

UK / ˌri:əˈʃʊr /

B1
  • verb
  • To make feel less worried about something

short

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US / ʃɔ:t /

UK / ʃɔrt /

A1
  • adverb
  • Less than what is needed
  • Suddenly stopping what you are saying or doing
  • verb
  • (Of electric circuit) to spark because faulty
  • adjecitve
  • Measuring a small distance
  • Happening for a small amount of time
  • Unfriendly or rude

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

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

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)

treaty

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US / ˈtri:ti /

UK / ˈtriti /

B1
  • noun
  • An agreement between nations

destroy

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US / dɪ'strɔɪ /

UK / dɪˈstrɔɪ /

A2
  • verb
  • To damage so badly that something no longer exists
  • To defeat someone or something easily
  • To kill a sick or unwanted animal

face

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US / feɪs /

UK / fes /

A1
  • noun
  • Side or outer surface of something
  • An expression using mouth, nose, eyes etc.
  • Front part of the head where eyes, mouth etc. are
  • Characteristics you show in public
  • verb
  • To cover a surface with something like paint
  • To deal with a problem or responsibilities
  • To look toward; point in a certain direction

fanciful

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US / ˈfænsɪfl /

UK / ˈfænsɪfəl /

B2
  • adjecitve
  • Imagined; unusual; whimsical

lowry

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US / ˈlauəri /

UK / ˈlaʊri /

A1

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

teller

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US / ˈtelə(r) /

UK / ˈtɛlɚ /

B2
  • noun
  • Person who works at a bank front counter

those

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US / ðəʊz /

UK / ðoz /

A1
  • determiner
  • The people or things we are talking about
  • pronoun
  • The objects far from the speaker

though

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US / ðəu /

UK / ðo /

A1
  • adverb
  • Although, despite the fact that

commemorate

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US / kə'meməreɪt /

UK / kəˈmɛməˌret /

B2
  • verb
  • To celebrate the memory of someone or some event

eclipse

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US / ɪˈklɪps /

UK / ɪˈklɪps /

A1
  • noun
  • When moon or other body passes in front of another
  • Loss of status due to others' increased success
  • verb
  • To pass in between and block view of (Sun, etc.)
  • To reduce the status of someone or something

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)

california

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US / ˌkælɪ'fɔ:njə, -'fɔ:ni:ə /

UK / ˌkælɪ'fɔ:rnjəˌ -'fɔ:rni:ə /

A1
  • noun
  • A state in the western United States on the Pacific; the rd largest state; known for earthquakes

line

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US / laɪn /

UK / laɪn /

A1
  • noun
  • Border that divides two places or regions
  • Long crease in the skin, often from age
  • Mark that is long, straight and very thin
  • Row of words, letters or numbers that are written
  • Telephone connection
  • People waiting one behind the other; queue
  • Long thin wire, e.g. for electrical signal
  • verb
  • To put material along the inside of something

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

request

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US / rɪ'kwest /

UK / rɪˈkwɛst /

A2
  • noun
  • Thing that has been asked for
  • verb
  • To ask for, usually politely and formally

technology

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US / tek'nɒlədʒɪ /

UK / tɛkˈnɑlədʒi /

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

astronomer

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US / əˈstrɒnəmə(r) /

UK / əˈstrɑ:nəmə(r) /

B2
  • noun
  • Scientist studying stars and other bodies in space

eccentric

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US / ɪkˈsentrɪk /

UK / ɪkˈsɛntrɪk, ɛk- /

B1
  • adjecitve
  • Out of the ordinary; acting unusually or oddly
  • noun
  • Person who acts unusually or bizarrely

few

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US / fju: /

UK / fju /

A1
  • pronoun
  • Not many, a small number

explode

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US / ɪk'spləʊd /

UK / ɪkˈsplod /

B1
  • verb
  • To express an emotion in a sudden and loud way
  • To increase in number or amount very quickly
  • To burst or cause to burst into pieces

fact

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US / fækt /

UK / fækt /

A1
  • noun
  • Something that is known or proved to be true

earth

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US / ɜ:θ /

UK / ɚθ /

A1
  • noun
  • Wire connecting an electrical device to the ground
  • The planet we live on
  • Soil in which we grow plants

leonard

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US / 'fraɪtnɪŋlɪ /

UK / 'fraɪtnɪŋlɪ /

A1

oman

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US / əʊˈmɑːn /

UK / oʊˈmɑn /

A1
  • noun
  • A strategically located monarchy on the southern and eastern coasts of the Arabian Peninsula; the ec

militarization

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US / ˌʌp'stændɪŋ /

UK / ʌpˈstændɪŋ, ˈʌpˌstan- /

A1

probable

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US / ˈprɒbəbl /

UK / ˈprɑbəbəl /

A2
  • adjecitve
  • (Of a state or fact) likely to happen or be true

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

partial

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US / ˈpɑ:ʃl /

UK / ˈpɑ:rʃl /

B1
  • adjecitve
  • Giving better treatment to one person than another
  • Not complete; being only part of something

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

any

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US / 'enɪ /

UK / ˈɛni /

A1
  • adjecitve
  • One, or some, no matter which
  • pronoun
  • One (thing) of many; some

aim

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US / eɪm /

UK / em /

A2
  • noun
  • Act of pointing something at a target
  • Purpose or goal
  • verb
  • To point something at a target
  • To intend to get a thing or for a thing to happen

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

detonate

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US / 'detəneɪt /

UK / ˈdɛtn:ˌet /

C1
  • verb
  • To trigger or start an explosion

composition

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US / ˌkɒmpəˈzɪʃn /

UK / ˌkɑ:mpəˈzɪʃn /

A2
  • noun
  • Piece of writing, music etc.
  • A piece of music
  • Structure of a picture or image to make an effect

decide

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US / dɪ'saɪd /

UK / dɪˈsaɪd /

A2
  • verb
  • To make a choice or choose after thinking about it
  • To make a legal judgment in court
  • to affect the result of something

megaton

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US / ˈmegətʌn /

UK / ˈmɛɡəˌtʌn /

C2
  • noun
  • One million tons of TNT

pose

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US / pəʊz /

UK / poʊz /

B1
  • noun
  • False behavior to gain respect or liking
  • verb
  • To be or exist as (a problem, threat etc.)
  • To suggest an idea, question or solution
  • To sit or stand while being painted or drawn
  • To put someone in a position to be photographed

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

altogether

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US / ˌɔ:ltəˈgeðə(r) /

UK / ˌɔltəˈɡɛðɚ /

A2
  • adverb
  • All things considered
  • Completely and entirely, fully
  • With all included and counted

far

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US / fɑ:(r) /

UK / fɑr /

A1
  • adjecitve
  • A long way away
  • Being a long way away
  • adverb
  • To a large degree or extent

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

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

radiation

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US / ˌreɪdiˈeɪʃn /

UK / ˌrediˈeʃən /

B1
  • noun
  • Energy transmitted as rays, waves or particles
  • Process of emitting something in waves
  • Harmful waves of energy from nuclear activity

consultant

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US / kən'sʌltənt /

UK / kənˈsʌltənt /

A2
  • noun
  • Expert who gives (paid) advice

environmental

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US / ɪnˌvaɪrənˈmentl /

UK / ɛnˌvaɪrənˈmɛntl:, -ˌvaɪən /

A2
  • adjecitve
  • Of the natural world of plants and animals

dominance

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US / 'dɒmɪnəns /

UK / ˈdɑmənəns /

B1
  • noun
  • Having more power, success than others

maintain

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US / meɪn'teɪn /

UK / menˈten /

A2
  • verb
  • To keep saying something a certain way
  • To keep (machine) working by checking, repairing
  • To keep, exist or continue without changing

keep

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US / ki:p /

UK / kip /

A1
  • noun
  • Large, strong tower in the middle of a castle
  • Money spent on you so you can live in a place
  • verb
  • To continue doing something; not to stop
  • To stop balls going in a goal in sports
  • To not give back or return something
  • (Of food) to not spoil or not rot
  • To take possession of something to own, e.g. a pet
  • To have and continue to hold something
  • To do something that you have promised or agreed
  • To stay in a certain place or condition
  • To maintain the rules

rather

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US / 'rɑ:ðə(r) /

UK / ˈræðɚ, ˈrɑðɚ /

A1
  • adverb
  • Somewhat; fairly; not that much

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

unaware

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US / ˌʌnəˈweə(r) /

UK / ˌʌnəˈwɛr /

A2
  • adjecitve
  • Not knowing that something is happening

solely

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US / ˈsəʊlli:, ˈsəʊli: /

UK / ˈsolli, ˈsoli /

B1
  • adverb
  • With no one or nothing else

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

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)

discourage

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US / dɪs'kʌrɪdʒ /

UK / dɪˈskɚrɪdʒ, -ˈskʌr- /

B1
  • verb
  • To make a person feel less courageous or hopeful
  • To try to prevent something from happening

environment

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US / ɪn'vaɪrənmənt /

UK / ɛnˈvaɪrənmənt, -ˈvaɪən- /

A1
  • noun
  • Natural world in which plants and animals live
  • The entire surrounding conditions of something

crater

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US / 'kreɪtə(r) /

UK / ˈkretɚ /

B1
  • noun
  • Large hole in ground caused by heavy impact

guide

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US / ɡaɪd /

UK / ɡaɪd /

A2
  • noun
  • Book or a magazine containing information/advice
  • Person leading others visiting an unknown place
  • verb
  • To help or advise someone about something
  • To control missile to hit a target by radio signal
  • To lead people visiting a new or unknown place

horrified

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US / 'hɒrɪfaɪd /

UK / ˈhɔrəˌfaɪd /

B2
  • adjecitve
  • Very annoyed or disapproving; shocked
  • verb
  • To cause someone to feel horror or shock

morale

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US / məˈrɑ:l /

UK / məˈræl /

B2
  • noun
  • ​the amount of confidence and enthusiasm, etc. that a person or a group has at a particular time

issue

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US / 'ɪʃu: /

UK / ˈɪʃu /

A2
  • noun
  • Important topic discussed, debated or argued over
  • Single edition of a magazine
  • verb
  • To make something available to be used or sold
  • To deliver a statement, etc. in an official manner

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

from

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US / frəm /

UK / frʌm, frɑm,frəm /

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

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

national

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US / 'næʃnəl /

UK / ˈnæʃənəl, ˈnæʃnəl /

A2
  • adjecitve
  • Concerning a nation as a whole
  • noun
  • A person of a particular country

berkeley

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US / ˈbɑ:kli,ˈbə:kli /

UK / ˈbɚkli /

A1
  • proper noun
  • A city in western California, on San Francisco Bay, site of a campus of the University of California

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

inclusion

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US / ɪnˈklu:ʒn /

UK / ɪnˈkluʒən /

B1
  • noun
  • Act of including; person, thing that is included

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

payload

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US / ˈpeɪləʊd /

UK / ˈpeˌlod /

C2
  • noun
  • Part of guided missile containing the explosive

put

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US / pʊt /

UK / pʊt /

A1
  • phrasal verb
  • to make a light stop shining by pressing or moving a switch
  • verb
  • To move or place a thing in a particular position
  • To rate something in importance or value
  • To write or say something in a certain manner

release

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US / rɪ'li:s /

UK / rɪ'li:s /

A2
  • noun
  • Act of freeing someone from a duty or burden
  • Introduction of a new product, film, book, etc.
  • Relief from sadness, suffering or trouble
  • Act of freeing from a jail, cage, prison, etc.
  • verb
  • To free someone from a responsibility or burden
  • To allow a film, music etc. to be sold/distributed
  • To allow to leave a jail, cage, etc.; let out
  • To let go of something you are holding

speculation

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US / ˌspekjuˈleɪʃn /

UK / ˌspɛkjəˈleʃən /

B2
  • noun
  • Taking risks that might lead to big profits
  • Prediction or guess about future events/outcomes

two

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US / tu: /

UK / tu /

A1
  • number
  • 2

ban

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US / bæn /

UK / bæn /

B1
  • noun
  • Official action preventing something happening
  • verb
  • To make something illegal or not allowed

direct

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US / də'rekt /

UK / dɪˈrɛkt, daɪ- /

A2
  • adverb
  • Coming straight from something
  • verb
  • To tell someone in a very clear way to do something
  • To show the way by conducting or leading
  • To control the acting in a movie or play

finding

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US / ˈfaɪndɪŋ /

UK / ˈfaɪndɪŋ /

A1
  • noun
  • Something you discover or find out; a result
  • 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

most

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US / məʊst /

UK / most /

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

praise

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US / preɪz /

UK / preɪz /

B1
  • noun
  • Expression of approval of something/someone
  • Expression of thanks, respect, and love
  • verb
  • To express approval of something or someone
  • To express thanks, respect, and love

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

abandon

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US / ə'bændən /

UK / əˈbændən /

B1
  • noun
  • Wild, carefree behavior
  • verb
  • To discard or intentionally get rid of an item
  • To withdraw your support, or leave someone
  • To stop doing or having (hope, plans); give up
  • To leave a place, car and not go back
  • To surrender to a desire, with little self-control

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.)

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

dissuade

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US / dɪ'sweɪd /

UK / dɪˈswed /

C1
  • verb
  • To persuade someone not to do something

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

propose

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US / prə'pəʊz /

UK / prəˈpoz /

A2
  • verb
  • To make an offer of marriage
  • To offer or put forward an idea for consideration

big

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US / bɪɡ /

UK / bɪɡ /

A1
  • adjecitve
  • Popular
  • Serious
  • Large

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

easily

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US / ˈi:zəli /

UK / ˈizəli /

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

luna

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US / ˈlu:nə /

UK / ˈlunə /

A1
  • proper noun
  • A series of Soviet moon probes launched in 1959–76. They made the first hard and soft landings on th

kuiper

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US / 'kʌ /

UK / 'kʌ /

A1

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

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

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

rate

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US / reɪt /

UK / ret /

A1
  • noun
  • Current price or cost of something
  • Speed or frequency of events over time
  • verb
  • To assess something or consider its qualities

rationale

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US / ˌræʃəˈnɑ:l /

UK / ˌræʃəˈnæl /

B2
  • noun
  • Explanation of justification for something

rocket

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US / 'rɒkɪt /

UK / ˈrɑkɪt /

B1
  • noun
  • Powerful engine that releases hot gases
  • Dark green, hot-tasting salad leaf
  • Weapon shaped like a long tube carrying bombs
  • Vehicle transporting people or things into space
  • verb
  • To travel, increase, or rise very quickly

rumour

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US / ˈru:mə(r) /

UK / ˈrumɚ /

B1
  • noun
  • Gossip; story told by other people often not true
  • verb
  • To gossip; to tell a story about other people

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

satellite

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US / 'sætəlaɪt /

UK / ˈsætlˌaɪt /

B1
  • noun
  • Device sent into space that aids communication
  • Natural object in space that moves around another
  • Area controlled by another group or country

unfortunately

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US / ʌnˈfɔ:tʃənətli /

UK / ʌnˈfɔːrtʃənətli /

B1
  • adverb
  • In a way that is to be regretted; unluckily

apparently

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US / əˈpærəntli /

UK / əˈpærəntlɪ /

A2
  • adverb
  • According to what you heard; from what can be seen

essential

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US / ɪ'senʃl /

UK / ɪˈsɛnʃəl /

A2
  • adjecitve
  • Extremely or most important and necessary

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.)

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

truly

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US / 'tru:lɪ /

UK / ˈtruli /

A2
  • adverb
  • In accordance with truth, fact or reality; really

bad

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US / bæd /

UK / bæd /

A1
  • adjecitve
  • Not good; wrong
  • Lacking in good morals; evil
  • No longer fresh; spoiled

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

fallout

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US / 'fɔ:laʊt /

UK / ˈfɔlˌaʊt /

C2
  • noun
  • Radioactive particles after a nuclear explosion

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

vanguard

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US / ˈvængɑ:d /

UK / ˈvængɑ:rd /

B2
  • noun
  • Group who are the leaders in an action or movement

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.

visible

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US / ˈvɪzəbl /

UK / ˈvɪzəbəl /

B1
  • adjecitve
  • Can see, easily seen or understood
  • Being obvious or easy to see

university

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US / ˌju:nɪ'vɜ:sətɪ /

UK / ˌjunɪˈvɜrsəti /

A1
  • noun
  • High-level educational institution; college

discuss

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US / dɪˈskʌs /

UK / dɪˈskʌs /

A1
  • verb
  • To talk about seriously or in great detail

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

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

testimony

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US / 'testɪmənɪ /

UK / ˈtɛstəˌmoni /

C1
  • noun
  • Public statement of personal religious experiences
  • Statement of evidence in court

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

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

academic

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US / ˌækə'demɪk /

UK / ˌækəˈdɛmɪk /

B1
  • adjecitve
  • Concerning education, schools, universities, etc.
  • Unimportant or irrelevant; trivial
  • noun
  • Educator teaching at a college or university
  • other
  • Concerning education, schools, universities, etc.

although

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US / ɔ:lˈðəu /

UK / ɔlˈðo /

A1
  • conjunction
  • Despite the fact that; however

follow

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US / ˈfɔləu /

UK / ˈfɑlo /

A1
  • verb
  • To come after someone; be guided by someone
  • To support someone, e.g. singer or comedian
  • To be the logical result of something
  • To happen after something else happens
  • To believe a set of values or a moral teacher
  • To understand something happening or being said

giant

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US / 'dʒaɪənt /

UK / ˈdʒaɪənt /

A2
  • adjecitve
  • Very large, or much bigger than other things
  • noun
  • Tall, large, and powerful human-like creatures
  • Very successful, powerful person or organization

goal

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US / ɡəʊl /

UK / ɡol /

A2
  • noun
  • Something you try to do or achieve; an aim
  • (Sports) net into which you put a ball to score
  • (Sports) act of scoring by putting a ball in a net

illinois

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US / ˌɪlɪ'nɔɪ(z) /

UK / ˌɪlə'nɔɪ /

A1
  • other
  • A member of the Algonquian people formerly of Illinois and regions to the west
  • A midwestern state in north-central United States
  • Algonquian language of the Illinois and Miami

originally

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US / əˈrɪdʒənəli /

UK / əˈrɪdʒənəli /

A2
  • adverb
  • At first; in the beginning
  • In a new and unique manner

regard

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US / rɪ'ɡɑ:d /

UK / rɪˈɡɑrd /

A2
  • noun
  • Admiration or respect for a person or thing
  • verb
  • To think about a person, thing in a particular way
  • To look at a person or thing in a particular way

solution

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US / səˈlu:ʃn /

UK / səˈluʃən /

A2
  • noun
  • Mix of a liquid and a solid or a gas
  • Way to solve or deal with a problem

image

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US / 'ɪmɪdʒ /

UK / ˈɪmɪdʒ /

A2
  • noun
  • Picture, sculpture or painting of something
  • General idea or opinion of something
  • verb
  • To obtain pictures by scanning them with a machine

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

relic

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US / ˈrelɪk /

UK / ˈrɛlɪk /

B2
  • noun
  • Valuable, ancient thing or work of art

russian

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US / ˈrʌʃn /

UK / ˈrʌʃn /

A1
  • adjecitve
  • Concerning the culture and people of Russia
  • noun
  • Person from Russia

treat

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US / tri:t /

UK / trit /

A1
  • noun
  • Something you buy for others as a surprise present
  • something that tastes good and that is not eaten often
  • verb
  • To pay for the food or enjoyment of someone else
  • To use medical methods to try to cure an illness
  • To act in a certain way toward someone

entire

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US / ɪn'taɪə(r) /

UK / ɛnˈtaɪr /

A2
  • adjecitve
  • Complete or full; with no part left out; whole

famous

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US / 'feɪməs /

UK / ˈfeməs /

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

forward

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US / 'fɔ:wəd /

UK / ˈfɔrwəd /

A1
  • adjecitve
  • Toward what is ahead; in front
  • Acting in a socially aggressive manner; pushy
  • adverb
  • Toward the front in place; in front
  • Toward a future time; to a more advanced state
  • verb
  • To send something to another address or person

interfere

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US / ˌɪntə'fɪə(r) /

UK / ˌɪntɚˈfɪr /

B1
  • verb
  • To get involved in something not your business

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

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

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

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

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

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

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

scholarship

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US / 'skɒləʃɪp /

UK / ˈskɑlɚˌʃɪp /

B2
  • noun
  • Work of learning, studying, acquiring knowledge
  • Money given to a student to pay for education

settle

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US / 'setl /

UK / ˈsɛtl /

A2
  • noun
  • Type of wooden seat
  • verb
  • To make (a child, etc.) feel calm/ready for sleep
  • To complete or finalize e.g. a contract or debt
  • To end some troubles by reaching an agreement
  • To become accustomed to a new environment
  • (Of liquids) to move to the bottom of a container

rock

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US / rɒk /

UK / rɑk /

A1
  • noun
  • Type of popular music with a strong, loud beat
  • Strong, tough person who can be relied upon
  • Big stone; hard, solid substance forming mountains
  • verb
  • To be greatly upset by something, e.g. a death
  • To be extremely effective or pleasing
  • To play, sing along with, or dance to heavy music
  • To move back and forth or from side to side

than

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US / ðən /

UK / ðən /

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

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

atoll

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US / ˈætɒl /

UK / ˈætɔ:l /

C1
  • noun
  • Island with a circular coral reef and a lagoon

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

also

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US / 'ɔ:lsəʊ /

UK / ˈɔlso /

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

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)

humanity

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US / hju:ˈmænəti /

UK / hjuˈmænɪti /

A2
  • noun
  • Quality of being understanding or sympathetic
  • Human race as one group of people

sputnik

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US / ˈspʌtnɪk /

UK / ˈspʊtnɪk, ˈspʌt-, ˈsputnjɪk /

C2
  • noun
  • Russian artificial satellite

twilight

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US / 'twaɪlaɪt /

UK / ˈtwaɪˌlaɪt /

B2
  • noun
  • Period of time just as the sun sets
  • Period at day's end when little light remains

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

you

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US / jʊ /

UK / ju /

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

acknowledge

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US / ək'nɒlɪdʒ /

UK / ækˈnɑlɪdʒ /

A2
  • verb
  • To say you have received a letter, gift, etc.
  • To say you accept the truth or value of something
  • to publicly express appreciation

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

drop

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US / drɒp /

UK / drɑp /

A1
  • noun
  • Distance between a higher and a lower level
  • Act of letting something fall (from your hand)
  • A decrease in quantity or quality; reduction
  • Tiny amount of liquid, with rounded bottom
  • verb
  • To drive someone to a place and then drive away
  • To let something fall from your hand
  • To fall or lie down quickly, as when shot
  • To decide to stop something e.g. a course)
  • To (cause to) reduce in quantity or quality

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

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”

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

pacific

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US / pə'sɪfɪk /

UK / pəˈsɪfɪk /

A1
  • adjecitve
  • Relating to or bordering the Pacific Ocean
  • Concerned with peace or of a peaceful nature

who

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US / hu: /

UK / hu /

A1
  • pronoun
  • Which person
  • Used to introduce information about people

unofficially

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US / ˌʌnə'fɪʃəlɪ /

UK / ˌʌnə'fɪʃəlɪ /

B1
  • adverb
  • Not done in a properly authorized way

kilogram

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US / ˈkɪləgræm /

UK / ˈkɪləɡræm /

A2
  • noun
  • 1000g

list

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US / lɪst /

UK / lɪst /

A1
  • noun
  • Lean of a boat to one side
  • Series of written names, words or numbers
  • verb
  • To lean to one side, like a boat or ship
  • To present for sale for a specific price
  • To write a series of names, words, or numbers

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

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

stance

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US / stæns /

UK / stæns /

B1
  • noun
  • A position or opinion stated in public
  • Position or way of standing

whopping

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US / ˈwɒpɪŋ /

UK / ˈwɑ:pɪŋ /

C1
  • adverb
  • (Informal) huge; very big

act

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US / ækt /

UK / ækt /

A1
  • noun
  • What someone did; action; behavior
  • A law or rule passed by a government we must obey
  • One of the parts that a stage play is divided into
  • verb
  • To behave in a certain way
  • To perform on a stage or in a movie

activist

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US / ˈæktɪvɪst /

UK / ˈæktəvɪst /

B1
  • noun
  • A person who tries to change a government, society

believe

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US / bɪ'li:v /

UK / bɪˈliv /

A1
  • verb
  • To think or accept that something is true
  • To have a particular opinion about something

bright

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US / braɪt /

UK / braɪt /

A2
  • adjecitve
  • Cheerful and happy (manner)
  • (Of color) light and easy to see; vivid
  • Producing a lot of light
  • Smart; intelligent; clever

hiroshima

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US / /

UK / /

A1
  • proper noun
  • A city in southwestern Japan, on the southern coast of the island of Honshu; population 1,144,572 (2

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

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

cancel

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US / 'kænsl /

UK / ˈkænsəl /

A2
  • verb
  • To end a legal, business, or other agreement
  • To stop a planned event from happening

institute

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US / 'ɪnstɪtju:t /

UK / ˈɪnstɪˌtut, -ˌtjut /

A2
  • noun
  • Organization studying science, engineering etc.
  • verb
  • To start or commence doing, e.g. a business plan

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

moon

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US / mu:n /

UK / mun /

A2
  • noun
  • Round object circling the Earth at night
  • verb
  • To expose your buttocks as a joke

miss

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US / mɪs /

UK / mɪs /

A1
  • noun
  • Action of not hitting something or someone
  • Form of address to unmarried girl or woman
  • verb
  • To be absent
  • To fail to hit something e.g. a ball
  • To do without something
  • To fail to see or sense something
  • To fail to understand someone's message
  • To be too late to ride on something e.g. train
  • To feel you want to see someone who is not there

powered

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US / ˈpaʊəd /

UK / ˈpaʊərd /

A2
  • verb
  • To give energy to something, e.g. by electricity
  • To move something forcefully and quickly

british

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US / ˈbrɪtɪʃ /

UK / ˈbrɪtɪʃ /

A1
  • adjecitve
  • Concerning the culture and people of British

heavy

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US / 'hevɪ /

UK / ˈhɛvi /

A1
  • adjecitve
  • Greater in amount, degree, or severity than usual
  • Involving serious or strong emotions
  • Having a lot of weight

icbms

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US / /

UK / /

A1
  • other
  • Acronyms for Intercontinental Ballistic Missile

old

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US / əʊld /

UK / old /

A1
  • adjecitve
  • Having existed for a long time, not young or new
  • Age of a person since birth

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

achievement

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US / əˈtʃi:vmənt /

UK / əˈtʃivmənt /

A2
  • noun
  • Something good that you have successfully done

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

background

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US / ˈbækgraʊnd /

UK / ˈbækˌɡraʊnd /

A2
  • noun
  • Images, color, or information behind the main one
  • Someone's personal work and educational history
  • A position not as important as the main event
  • Past events that influence things in the present

contribution

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US / ˌkɒntrɪˈbju:ʃn /

UK / ˌkɑ:ntrɪˈbju:ʃn /

A2
  • noun
  • Helping a cause by giving money, things, services
  • Article published in magazine or newspaper
  • Regular payments to the government for a pension

fear

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US / fɪə(r) /

UK / fɪr /

A1
  • noun
  • Unpleasant feeling caused by being aware of danger
  • verb
  • To be afraid of or nervous about something

envision

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US / ɪnˈvɪʒn /

UK / ɪnˈvɪʒn /

C2
  • verb
  • To imagine or picture in your mind

kiloton

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US / 'kɪlətʌn /

UK / 'kɪləˌtʌn /

A1
  • noun
  • One thousand ton

original

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US / ə'rɪdʒənl /

UK / əˈrɪdʒənəl /

A2
  • adjecitve
  • Being first made, thought or performed; fresh
  • Being unique or thinking differently from others

risk

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US / rɪsk /

UK / rɪsk /

A1
  • noun
  • Actions that cause potential problems
  • verb
  • To do something potentially dangerous or foolish

they

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US / ðeɪ /

UK / ðe /

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

volume

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US / ˈvɒlju:m /

UK / ˈvɑljum, -jəm /

A2
  • noun
  • Number or amount of something e.g. sales
  • Amount of space that something takes up
  • One book that is part of a set of books
  • Level of sound produced by radio or television

close

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US / kləʊz /

UK / kloʊz /

A1
  • adjecitve
  • Almost; near
  • (Of a friend) well-known; liked by others
  • Being near or related
  • Similar; nearly the same
  • verb
  • To come progressively nearer to something
  • To end; to bring to an end
  • To make something shut; stop from being open

discover

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US / dɪˈskʌvə(r) /

UK / dɪˈskʌvɚ /

A2
  • verb
  • To find something new that was not known before

enamour

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US / ɪˈnæm.ər /

UK / ɪˈnæm.ɚ /

C2
  • verb

burst

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US / bɜ:st /

UK / bɚst /

A2
  • noun
  • Brief time period when something happens and ends
  • verb
  • To move (arrive, exit, etc.) suddenly or hurriedly
  • To break apart/open in a sudden and violent way

project

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US / prəˈdʒekt /

UK / prəˈdʒɛkt /

A1
  • noun
  • A planned piece of work for specific purpose
  • Group of homes built by government for poor people
  • verb
  • To predict what will happen in the future
  • To show something on a screen using light
  • To stick out past the edge of something

newspaper

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US / ˈnju:zpeɪpə(r) /

UK / ˈnuzˌpepɚ, ˈnjuz- /

A1
  • noun
  • Sheets of paper (or online) containing the news

shadow

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US / 'ʃædəʊ /

UK / ˈʃædo /

A2
  • noun
  • Person who follows another person to observe them
  • Area of darkness that is caused by blocked light
  • verb
  • To cover something with shade
  • To secretly follow a person

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

spectacular

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US / spekˈtækjələ(r) /

UK / spɛkˈtækjəlɚ /

B1
  • adjecitve
  • Impressive or out of the ordinary

slight

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US / slaɪt /

UK / slaɪt /

B1
  • adjecitve
  • Small (amount, quality)
  • Appearing thin, delicate and physically weak
  • noun
  • Rude and disrepectful treatment
  • verb
  • To ignore or treat rudely and with no respect

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

both

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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

fusion

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US / ˈfju:ʒn /

UK / ˈfjuʒən /

B2
  • noun
  • Combining various things to make something new

military

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US / 'mɪlətrɪ /

UK / ˈmɪlɪˌtɛri /

B1
  • adjecitve
  • Concerning the army or navy
  • noun
  • Army or armed forces

reactor

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US / riˈæktə(r) /

UK / riˈæktɚ /

B1
  • noun
  • Device to control nuclear energy as a power source

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

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

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

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

constitute

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US / 'kɒnstɪtju:t /

UK / ˈkɑnstɪˌtut, -ˌtjut /

B1
  • verb
  • To become a group of
  • To establish or form a government, etc.
  • To be similar or equal to something

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

due

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US / dju: /

UK / du, dju /

A1
  • adjecitve
  • When something is required or expected
  • Owed to a person as a right
  • noun
  • Something you deserve; something you can expect

huge

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US / hju:dʒ /

UK / hjudʒ /

A2
  • adjecitve
  • Very very large

notably

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US / ˈnəʊtəbli /

UK / ˈnoʊtəbli /

A2
  • adverb
  • In a way that deserves notice; particularly

reflect

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US / rɪ'flekt /

UK / rɪˈflɛkt /

A2
  • verb
  • To indicate or be a sign of something
  • To bounce back light, heat, sound from a surface
  • To show an image in glass, water, a mirror etc.
  • To think of something seriously and carefully

their

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US / ðɛː /

UK / ðer /

A1
  • determiner
  • Belonging to them

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

aware

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US / əˈwɛə /

UK / əˈwɛr /

A2
  • adjecitve
  • Knowing or feeling that something exists

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

dead

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US / ded /

UK / dɛd /

A1
  • adjecitve
  • Not alive
  • Being bored or not interested
  • Unable to operate because electricity etc. ran out
  • Being unable to feel, physically or emotionally
  • adverb
  • Completely; absolutely

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

medium

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US / 'mi:dɪəm /

UK / ˈmidiəm /

A2
  • noun
  • Method of expressing ideas or feelings
  • Something available in a middle size or condition
  • Person who claims to communicate with the dead

claim

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US / kleɪm /

UK / klem /

A2
  • noun
  • Demand for something that is believed to be due
  • Something said to be true when others don't agree
  • verb
  • To demand something that is believed to be due
  • To cause someone's life to come to an end
  • To say something is true when others may not agree

hit

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US / hɪt /

UK / hɪt /

A1
  • noun
  • A planned killing, usually for money
  • Song, movie etc. that is successful
  • When someone strikes someone or something
  • Time when a player makes contact with the ball
  • Time when a website is accessed
  • verb
  • To have a negative impact on a person/place/thing
  • To press something, such as a button or switch
  • To suddenly realize the importance of something
  • To move your hand, a bat, etc. against with force
  • To fight, attack or damage something or someone
  • To arrive at a specific place, level, or goal
  • To make contact with the ball in a game or sport

nothing

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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

officially

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US / əˈfɪʃəli /

UK / əˈfɪʃəlɪ /

A2
  • adverb
  • According to what is stated by an authority figure

requirement

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US / rɪ'kwaɪəmənt /

UK / rɪˈkwaɪrmənt /

A2
  • noun
  • A demand that someone does something
  • Something that is a necessity

aerospace

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US / 'eərəʊspeɪs /

UK / ˈɛroˌspes /

B2
  • noun
  • Industry of air and space travel

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

enough

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US / ɪˈnʌf /

UK / ɪˈnʌf /

A1
  • adjecitve
  • Sufficient to answer the need
  • adverb
  • To a satisfactory degree
  • pronoun
  • Equal to what is needed; as much as required
  • Adequate number or amount

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

offer

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US / 'ɒfə(r) /

UK / ˈɔfɚ, ˈɑfɚ /

A1
  • noun
  • Price you say you are willing to pay for something
  • Act of making a thing available to be accepted
  • verb
  • To suggest a price you are willing to pay
  • To give the opportunity to accept something
  • To say you are willing to do something
  • To give or say something as an act of worship

primarily

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US / praɪˈmerəli /

UK / praɪˈmɛrəli, -ˈmɛr- /

A2
  • adverb
  • In the most basic or important way

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

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

suddenly

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US / ˈsʌdənli /

UK / ˈsʌdn:lɪ /

A1
  • adverb
  • In an unexpected or very quick manner

comment

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US / 'kɒment /

UK / ˈkɑmɛnt /

A2
  • noun
  • Something you say, giving an opinion; remark
  • verb
  • To say something that gives your opinion

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

force

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US / fɔ:s /

UK / fɔrs, fors /

A1
  • noun
  • Group of persons trained for military action; army
  • Pressure; attraction
  • The use of physical strength/violence to persuade
  • verb
  • To use physical strength or violence to persuade

during

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US / ˈdjʊərɪŋ /

UK / ˈdʊrɪŋ, ˈdjʊr- /

A1
  • preposition
  • At some point in the course of an event or thing

student

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US / ˈstju:dnt /

UK / ˈstudnt, ˈstjud- /

A1
  • noun
  • Person studying at school

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

physicist

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US / ˈfɪzɪsɪst /

UK / ˈfɪzɪsɪst /

B2
  • noun
  • Person who studies and works in physics

adamant

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US / ˈædəmənt /

UK / ˈædəmənt, -ˌmænt /

B2
  • adjecitve
  • Determined not to change your opinion

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)

again

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US / ə'ɡen /

UK / əˈɡɛn /

A1
  • adverb
  • One more time, once more

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

eventually

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US / ɪˈventʃuəli /

UK / ɪˈvɛntʃuəli /

A2
  • adverb
  • After a long time; after many attempts; in the end

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

people

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US / 'pi:pl /

UK / ˈpipəl /

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

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’

sagan

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US / ˈsæfrən /

UK / ˈsæfrən /

A1

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

bomb

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US / bɒm /

UK / bɑm /

B1
  • noun
  • An explosive device
  • verb
  • To attack with explosives
  • To fail or be completely unsuccessful

example

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US / ɪgˈzɑ:mpl /

UK / ɪɡˈzæmpəl /

A1
  • noun
  • Thing, person which represents a category

existence

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US / ɪɡ'zɪstəns /

UK / ɪɡˈzɪstəns /

A2
  • noun
  • State of being present, alive or real

happen

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US / 'hæpən /

UK / ˈhæpən /

A1
  • verb
  • To take place or occur

hire

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US / ˈhaɪə(r) /

UK / haɪr /

A2
  • noun
  • Short term rental of something e.g. car, phone
  • verb
  • To give a job to someone in exchange for pay
  • To give the use of something in exchange for money

inform

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US / ɪnˈfɔ:m /

UK / ɪnˈfɔ:rm /

A2
  • verb
  • To give information or facts about something

inspire

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US / ɪn'spaɪə(r) /

UK / ɪnˈspaɪr /

B1
  • verb
  • To give someone an idea to do or make something
  • To make someone feel a certain emotion

pock

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US / pɒk /

UK / pɒk /

C1
  • noun
  • Mark with a scar, as from acne; hole in road

breach

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US / bri:tʃ /

UK / britʃ /

B1
  • verb
  • To break laws or barriers (e.g. walls)

refuse

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US / rɪ'fju:z /

UK / ˈrefjus /

A2
  • noun
  • Garbage, waste
  • verb
  • To not accept, allow, or give something

she

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US / ʃɪ /

UK / ʃi /

A1
  • pronoun
  • Female person or animal mentioned before
  • (Refers to female person mentioned before)

right

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US / raɪt /

UK / raɪt /

A1
  • adjecitve
  • Correct or true
  • The south side of you looking at the rising sun
  • adverb
  • Exactly in a place or time
  • Being appropriate for a particular event
  • In a straight or direct manner
  • noun
  • Something you are legally or morally allowed to do
  • Ideal of what is just and good
  • Political view based on conservatism
  • verb
  • To fix something previously wrong or unjust
  • To make upright, as a boat that has turned over

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

lack

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US / læk /

UK / læk /

A2
  • noun
  • The state of not having or not having enough of
  • A shortage of something
  • verb
  • To not have, or not have enough, of something

hydrogen

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US / ˈhaɪdrədʒən /

UK / ˈhaɪdrədʒən /

B1
  • noun
  • Lightest of all chemical elements

own

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US / əʊn /

UK / on /

A1
  • adjecitve
  • Belong to oneself
  • determiner
  • Yours, his, hers, etc.; not belonging to another
  • pronoun
  • (Something) belong to myself
  • verb
  • To have something as your property

similar

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US / ˈsɪmələ(r) /

UK / ˈsɪməlɚ /

A1
  • adjecitve
  • Nearly the same; alike

advantage

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US / əd'vɑ:ntɪdʒ /

UK / ædˈvæntɪdʒ /

A2
  • noun
  • Thing making the chance of success higher
  • A positive point about something

cloud

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US / klaʊd /

UK / klaʊd /

A1
  • noun
  • A mass of smoke or mist hanging in the air
  • verb
  • To confuse the mind/judgment of a person
  • (Of the sky) to get darker and fill with clouds
  • To make (glass, etc.) difficult to see through
  • To make an activity less pleasant or enjoyable
  • (Of person's face, etc.) to show worry/anger

effect

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US / ɪ'fekt /

UK / ɪˈfɛkt /

A1
  • noun
  • An advantage, benefit
  • Change brought about by a cause; result

confidentiality

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US / ˌkɒnfɪˌdenʃiˈæləti /

UK / ˌkɒnfɪˌdenʃɪ'ælɪtɪ /

B1
  • noun
  • Agreement to keep some information secret

establish

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US / ɪˈstæblɪʃ /

UK / ɪˈstæblɪʃ /

A2
  • verb
  • To set or create something to last for a long time
  • To use facts, evidence to show truth or clarity

credit

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US / 'kredɪt /

UK / ˈkrɛdɪt /

A2
  • adjecitve
  • Having a positive amount of money
  • noun
  • System to buy something and pay for it later
  • Points earned instead of money
  • Quality of having a good reputation for a reason
  • Points earned towards a university degree
  • verb
  • To add a certain amount of money to a total
  • To recognize someone's achievements or help

artemis

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US / /

UK / /

A1
  • proper noun
  • A goddess, daughter of Zeus and sister of Apollo. She was a huntress and is typically depicted with

fission

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US / ˈfɪʃn /

UK / ˈfɪʃən /

C1
  • noun
  • Form of nuclear energy where particles combine

currently

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US / ˈkʌrəntli /

UK / ˈkʌrənt(ə)li /

A2
  • adverb
  • Happening or being in the present time

crazy

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US / 'kreɪzɪ /

UK / ˈkrezi /

A2
  • adjecitve
  • Mentally ill; mad
  • Not being sensible or practical
  • Really like someone or something very much
  • noun
  • Person acting in a manner that is strange and odd

inception

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US / ɪnˈsepʃn /

UK / ɪnˈsɛpʃən /

B2
  • noun
  • Beginning or start of (institution or business)

mushroom

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US / ˈmʌʃrʊm /

UK / ˈmʌʃˌrum, -ˌrʊm /

B1
  • noun
  • Short fungus shaped like an umbrella you can eat
  • verb
  • To increase in size or degree suddenly and quickly

video

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US / 'vɪdɪəʊ /

UK / ˈvɪdiˌo /

A2
  • adjecitve
  • Of a moving film, with sound
  • noun
  • Recording capturing action with sound
  • verb
  • To make a moving film of, with sound

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

want

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US / wɔnt /

UK / wɑnt, wɔnt /

A1
  • noun
  • Something you desire or wish for
  • State or condition of poverty
  • verb
  • To desire or wish for something; hope for a thing

weigh

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US / weɪ /

UK / weɪ /

A2
  • verb
  • To balance things against each other
  • To consider something carefully to form an opinion
  • To determine the weight of, using scales

interested

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US / ˈɪntrəstɪd /

UK / ˈɪntrɪstɪd, -tərɪstɪd, -təˌrɛstɪd /

A1
  • adjecitve
  • Having had your attention taken; curious
  • verb
  • To make someone want to know about something
  • To persuade to do, become involved with something

involve

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US / ɪn'vɒlv /

UK / ɪnˈvɑlv /

A2
  • verb
  • To have or be included as a part of something

militarize

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US / ˈmɪlɪtəraɪz /

UK / ˈmɪlɪtəraɪz /

A1
  • other
  • Adopt for military use
  • Lend a military character to (a country), as by building up a military force

study

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US / 'stʌdɪ /

UK / ˈstʌdi /

A1
  • noun
  • Room that a person studies or reads in
  • Piece of research
  • Topic or subject you research or learn about
  • verb
  • To focus on learning something usually at school

visibility

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US / ˌvɪzəˈbɪləti /

UK / ˌvɪzəˈbɪlɪti /

B1
  • noun
  • Quality of being able to be seen, as at a distance
  • Ability to be seen by others

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

development

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US / dɪ'veləpmənt /

UK / dɪˈvɛləpmənt /

A2
  • noun
  • Act or process of growing bigger or more advanced
  • A new event related to a previous event

not

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US / nɒt /

UK / nɑt /

A1
  • adverb
  • Word indicating the negative
  • (Used to form the negative of verbs)

october

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US / ɒkˈtəʊbə(r) /

UK / ɑkˈtobɚ /

A1
  • noun
  • 10th month of the year

quite

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US / kwaɪt /

UK / kwaɪt /

A1
  • adverb
  • Not very; fairly
  • Very; In a complete or total manner

powerful

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US / ˈpauəful /

UK / ˈpaʊəfəl /

A2
  • adjecitve
  • Having control or influence over
  • Having a lot of physical force, energy, strength

size

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US / saɪz /

UK / saɪz /

A1
  • noun
  • How big or small a thing is
  • Standard measurements for clothing, shoes
  • verb
  • To make something to fit a particular measurement
  • To organize or group from small to large

whole

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US / həul /

UK / hol /

A1
  • adjecitve
  • Complete or full; all of
  • Being in a good condition
  • noun
  • Complete amount or sum; total

transient

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US / 'trænzɪənt /

UK / ˈtrænʃənt, -ʒənt, -ziənt /

C1
  • adjecitve
  • Lasting only a short time; passing
  • noun
  • Person staying only a short time

address

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US / ə'dres /

UK / əˈdrɛs /

A1
  • noun
  • Exact street location of a place
  • A formal speech to a group of people
  • verb
  • To write the place someone lives on a letter
  • To refer to someone or something formally
  • To make a formal speech to a group of people
  • To try to find a solution to; think about

coincide

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US / ˌkəʊɪn'saɪd /

UK / ˌkoɪnˈsaɪd /

B1
  • verb
  • To occur by chance and without planning
  • To happen together at the same time

contamination

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US / kənˌtæmɪ'neɪʃən /

UK / kənˌtæməˈneʃən /

B2
  • noun
  • Being impure because of a harmful agent

child

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US / tʃaɪld /

UK / tʃaɪld /

A1
  • noun
  • A very young person, between about 2 and 15

become

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US / bɪ'kʌm /

UK / bɪˈkʌm /

A1
  • verb
  • To begin to be; grow to be; develop into
  • To be suitable for a particular job or role

mexico

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US / 'meksɪkəʊ /

UK / 'meksɪkoʊ /

A1
  • proper noun
  • A country in southwestern North America, with extensive coastlines on the Gulf of Mexico and the Pac

physics

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US / ˈfɪzɪks /

UK / ˈfɪzɪks /

A1
  • other
  • The study of heat, light, and energy on objects

fifty

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US / 'fɪftɪ /

UK / ˈfɪfti /

A1
  • number
  • 50

expansion

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US / ɪkˈspænʃn /

UK / ɪkˈspænʃən /

B2
  • noun
  • Making or becoming larger

give

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US / ɡɪv /

UK / ɡɪv /

A1
  • noun
  • Degree of flexibility in something, a material
  • verb
  • To hand over or present something to someone
  • To cause someone to have or experience something

but

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US / bət /

UK / bʌt,bət /

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

life

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US / laɪf /

UK / laɪf /

A1
  • noun
  • All the living things e.g. animals, plants, humans
  • Period of time things live, from birth to death

security

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US / sɪ'kjʊərətɪ /

UK / sɪˈkjʊrɪtisə'kjurətɪ /

A2
  • noun
  • Department in a company in charge of protection
  • Financial document, like stocks, bonds and notes
  • Person paid to protect property and people
  • Things done to protect people, buildings etc.
  • Condition of being safe from danger or harm

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

vulnerable

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US / ˈvʌlnərəbl /

UK / ˈvʌlnərəbəl /

B1
  • adjecitve
  • Being open to attack or damage
  • Being easily harmed, hurt, or wounded

achieve

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US / ə'tʃi:v /

UK / əˈtʃiv /

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

muse

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US / mju:z /

UK / mjuz /

B2
  • verb
  • To think about slowly or over a long period

reject

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US / rɪˈdʒekt /

UK / rɪˈdʒɛkt /

A2
  • noun
  • Goods that are not suitable for sale at full price
  • Person others do not like, or refuse to accept
  • verb
  • To decide that something is not good enough
  • To refuse, deny to believe, accept, or consider

arf

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US / /

UK / /

A1
  • exclamation
  • Used to imitate or represent a dog's bark.

considerably

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US / kənˈsɪdərəbli /

UK / kənˈsɪdərəblɪ /

B1
  • adverb
  • Quite a lot; to a large degree

condemnation

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US / ˌkɒndemˈneɪʃn /

UK / ˌkɑndɛmˈneʃən /

B1
  • noun
  • Expression of strong disapproval

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

november

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US / nəʊˈvembə(r) /

UK / noˈvɛmbɚ /

A1
  • noun
  • 11th month of the year

now

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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

september

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US / sepˈtembə(r) /

UK / sɛpˈtɛmbɚ /

A1
  • noun
  • 9th month of the year

punctuate

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US / 'pʌŋktʃʊeɪt /

UK / ˈpʌŋktʃuˌet /

B2
  • verb
  • To use special marks in writing, such as ? ; and !
  • To stop something briefly; interrupt

air

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US / eə(r) /

UK / er /

A1
  • noun
  • Mixture of gases around the earth that we breathe
  • A person's manner intended to impress others
  • verb
  • To expose to the outside, to dry or freshen
  • To broadcast a TV or radio show
  • To open a subject to discussion and debate

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

educator

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US / ˈedʒukeɪtə(r) /

UK / ˈɛdʒəˌketɚ /

A2
  • noun
  • Someone who teaches

full

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US / fʊl /

UK / fʊl /

A1
  • adjecitve
  • Containing all the parts; complete
  • Containing or holding as much as possible
  • Having had enough food
  • adverb
  • In a direct manner; completely

lunar

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US / ˈlu:nə(r) /

UK / ˈlunɚ /

B2
  • adjecitve
  • Concerning, about, or from the moon

sun

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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

reiterate

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US / rɪ'ɪtəreɪt /

UK / riˈɪtəˌret /

B2
  • verb
  • To say something again for further emphasis

apollo

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US / ə'pɒləʊ /

UK / ə'pɑloʊ /

A1
  • proper noun
  • A god, son of Zeus and Leto and brother of Artemis. He is associated with music, poetic inspiration,
  • The American space program for landing astronauts on the moon. Apollo 8 was the first mission to orb

demoralize

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US / dɪ'mɒrəlaɪz /

UK / dɪ'mɔ:rəlaɪz /

C1
  • verb
  • To cause to lose confidence or belief in yourself

document

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US / 'dɒkjʊmənt /

UK / ˈdɑkjəmənt /

A2
  • noun
  • Official (printed) record that gives information
  • verb
  • To support an opinion with recorded evidence

newton

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US / ˈnju:tən /

UK / ˈnu:tən /

A1
  • noun
  • A unit of force equal to the force that imparts an acceleration of m, sec, sec to a mass of kilogram

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)

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

float

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US / fləʊt /

UK / floʊt /

B1
  • noun
  • Object designed to stay on the surface of water
  • Decorated truck used in a festival
  • verb
  • To sell the shares of a company publicly
  • To move slowly and easily through air
  • To rest on the surface of water without sinking

doctoral

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US / ˈdɒktərəl /

UK / ˈdɑːktərəl /

C1
  • adjecitve
  • Concerning the highest academic degree

hundred

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US / 'hʌndrəd /

UK / ˈhʌndrɪd /

A1
  • number
  • 100

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

astronomy

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US / əˈstrɒnəmi /

UK / əˈstrɑ:nəmi /

B2
  • noun
  • Study of stars and other bodies in space

century

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US / 'sentʃərɪ /

UK / ˈsɛntʃəri /

A1
  • noun
  • Period of 100 years

feasible

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US / ˈfi:zəbl /

UK / ˈfizəbəl /

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

davidson

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US / ˈdeɪvɪdsən /

UK / /

A1

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

investigation

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US / ɪnˌvestɪ'ɡeɪʃn /

UK / ɪnˌvɛstɪˈɡeʃən /

B1
  • noun
  • Search for information about something

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

information

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US / ˌɪnfəˈmeɪʃn /

UK / ˌɪnfɚˈmeʃən /

A1
  • noun
  • Collection of facts and details about something

island

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US / ˈaɪlənd /

UK / ˈaɪlənd /

A1
  • noun
  • Area of land that is surrounded by water

outer

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US / ˈaʊtə(r) /

UK / ˈaʊtɚ /

A1
  • adjecitve
  • Far away
  • Being farther away from the center
  • On or around something; away from the center

plan

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US / plæn /

UK / plæn /

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

prior

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US / 'praɪə(r) /

UK / ˈpraɪɚ /

B1
  • adjecitve
  • Existing or coming earlier in time
  • (Of a claim, etc.) more important than another one
  • noun
  • Monk or priest in charge of a monastery

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

sunlight

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US / ˈsʌnlaɪt /

UK / ˈsʌnˌlaɪt /

A2
  • noun
  • Rays of light coming from the sun

clear

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US / klɪə(r) /

UK / klɪr /

A1
  • adjecitve
  • Empty; without anything in it or on it
  • Being certain and without doubt
  • Being without any streaks, spots, or cracks
  • Easy to understand; well-explained; obvious
  • adverb
  • Completely; entirely; through the whole of
  • Away from; free from
  • verb
  • To recover from or remove a problem
  • To get rid of the entire contents of
  • To give permission for something to happen
  • To make a place or surface empty by removing
  • To prove that someone is not guilty or to blame

blow

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US / bləʊ /

UK / blo /

A2
  • noun
  • Something that causes you difficulty or sadness
  • Act of making air come out of your mouth
  • A hit or strike from an object
  • verb
  • To move something using air
  • To make air come quickly out of your mouth
  • To clear something by forcing air through it

adviser

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US / ədˈvaɪzə(r) /

UK / ædˈvaɪzɚ /

A2
  • noun
  • Someone giving advice in business, law etc.

desert

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US / 'dezət /

UK / ˈdɛzət /

A2
  • noun
  • Bare area of land, often with few plants and water
  • verb
  • To leave a place for ever; abandon
  • To leave when one is needed or expected to stay

freedom

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US / 'fri:dəm /

UK / ˈfridəm /

B1
  • noun
  • State of being free, not being controlled

gesture

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US / 'dʒestʃə(r) /

UK / ˈdʒɛstʃɚ /

A2
  • noun
  • Bodily movement expressing a particular meaning
  • Something you do to express gratitude, regret etc.
  • verb
  • To move your body to convey a message e.g. wave

mind

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US / maɪnd /

UK / maɪnd /

A1
  • noun
  • One's opinion or way of thinking about something
  • Part of humans that allows us to think or feel
  • verb
  • To be bothered or upset by something
  • To take care of someone e.g. as a bodyguard

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

raise

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US / reɪz /

UK / rez /

A1
  • noun
  • Increase in a bet above another when playing cards
  • Pay increase
  • verb
  • To increase a bet above another when playing cards
  • To gather donations for a cause or charity
  • To bring up and educate a child to maturity
  • To bring a dead person to life
  • To increase a quantity, size, intensity or price
  • To lift (e.g. your hand) to a higher position
  • To mention a topic /issue for discussion; bring up
  • To increase (salary, etc.)
  • To grow or care for plants or animals

scientist

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US / ˈsaɪəntɪst /

UK / ˈsaɪəntɪst /

A2
  • noun
  • Person who is trained in a science

review

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US / rɪˈvju: /

UK / rɪˈvju /

A2
  • noun
  • Examination of soldiers and supplies
  • Opinion, as in a paper, about movie, book, or play
  • Studying again to remind yourself about something
  • verb
  • To carefully look at the quality of something
  • To formally examine something in the military
  • To write an opinion about movie, book, or play
  • To study again to remind yourself about something

focus

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US / 'fəʊkəs /

UK / ˈfokəs /

A2
  • noun
  • Main purpose or center of interest or activity
  • verb
  • To see clearly by adjusting your eyes or a camera
  • To keep your attention, concentration on one thing

exist

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US / ɪɡ'zɪst /

UK / ɪɡˈzɪst /

A1
  • verb
  • To be present, alive or real

fall

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US / fɔ:l /

UK / fɔl /

A1
  • noun
  • Season after summer and before winter; Autumn
  • A drop in amount; decrease
  • Dropping from a standing position to the ground
  • verb
  • To drop in amount; to decrease
  • To come down from a higher position suddenly
  • To go from standing to the ground, by accident

ponder

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US / ˈpɒndə(r) /

UK / ˈpɑ:ndə(r) /

B2
  • verb
  • To think about something with great care

ruin

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US / 'ru:ɪn /

UK / ˈruɪn /

B1
  • verb
  • To damage or completely destroy something
  • To cause someone to lose their money or status
  • noun
  • Remains of a building that has been destroyed

symbolize

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US / 'sɪmbəlaɪz /

UK / ˈsɪmbəˌlaɪz /

B1
  • verb
  • To represent to show a thing's essential character

biography

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US / baɪˈɒgrəfi /

UK / baɪˈɑ:grəfi /

B1
  • noun
  • Story of a person's life as told by someone else

boost

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US / bu:st /

UK / bust /

B1
  • noun
  • An increase in something
  • verb
  • To increase something; to make something better
  • To push someone or something up from beneath them

deference

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US / ˈdefərəns /

UK / ˈdɛfərəns, ˈdɛfrəns /

B2
  • noun
  • Courteous expression of esteem, or regard

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

darkness

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US / 'dɑ:knəs /

UK / ˈdɑrknɪs /

A2
  • noun
  • The state or quality of being dark in color

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

public

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US / 'pʌblɪk /

UK / ˈpʌblɪk /

A1
  • adjecitve
  • Owned by the government
  • Concerning society in general
  • Being available or accessible to people in general
  • Known or able to be known by all people

awe

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US / ɔ: /

UK / ɔ /

B2
  • verb
  • To feel admiration, respect, or fear

his

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US / hɪz /

UK / hɪz /

A1
  • pronoun
  • Something belonging to a male person

government

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US / ˈgʌvənmənt /

UK / ˈɡʌvənmənt /

A1
  • noun
  • Group of people and system that rule a nation

horror

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US / ˈhɒrə(r) /

UK / ˈhɔrɚ, ˈhɑr- /

B1
  • noun
  • Feeling of great shock or fear; thing causing it

instance

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US / 'ɪnstəns /

UK / ˈɪnstəns /

A2
  • noun
  • An example of something; case
  • verb
  • To give as an example of something else

orbit

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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)

via

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US / ˈvaɪə /

UK / ˈvaɪə, ˈviə /

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

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
  • Subtitles section
  • Bright, transient, and majestic, humanity has long been inspired by the moon.
  • She's been a focus of myth, a guide for explorers, and a muse for poets.
  • As children, many of us have pondered her pocked surface and imagined faces or omens.
  • But have you ever been so enamored by the moon that you just wanted to, you know, blow it up?
  • Well, if you did, you might fit right in at the U.S. Air Force.
  • It just happened that in the 1950s, enough Air Force officials and scientists were interested shooting a nuclear warhead at the moon that an entire top-secret plan was developed.
  • Project A119.
  • Though the U.S. government has never officially acknowledged its existence, documents and testimonies regarding the project have begun leaking since the turn of the century, implicating some big names,
  • Not to mention some crazy engineering and physics.
  • On
  • October 4, 1957, the Soviet Union took a major lead in the space race by launching Sputnik 1. The first man-made satellite put into orbit.
  • This led to what has become known as the Sputnik Crisis.
  • The American public was considerably discouraged by the USSR's major technological achievements, and not just because it symbolized their lead in aerospace science.
  • Rather, Sputnik meant that the United States was suddenly vulnerable to Russian missile attacks.
  • At the time, U.S. plans to launch their own satellite used a rocket with 150,000 pounds or 670,000 newtons of thrust, meaning the satellite could only weigh about 21.5 pounds under 10 kilograms.
  • Yet Sputnik weighed more than eight times as much, at a whopping 184 pounds or 83 kilograms, meaning the Soviet R-7 rocket that launched it into orbit produced a million pounds or 4.4 million newtons of thrust.
  • If the USSR could produce a rocket this powerful, it meant they could make ICBMs that could likely reach American soil.
  • Americans were anxious and demoralized, which was only made worse by the U.S. Navy's Project Vanguard, which had two failed attempts to launch a smaller American satellite soon after.
  • Most people know that the United States did eventually launch their own satellite, Explorer 1, and had the last word in the space race after Apollo 11 put men on the moon.
  • But what many don't know is how many other eccentric ideas floated about the U.S. government and military to reassure the American public in the short term.
  • Project A119 was just one of these.
  • Research began in May, 1958, through the Armor Research Foundation, or ARF, at the Illinois Institute of Technology, and was led by the U.S. Air Force.
  • The ARF had already been studying the effects of nuclear explosions since 1949, so it was easy to shift to studying their effects on the lunar environment specifically.
  • They were inspired by rumors in American newspapers that the Soviet Union was planning to detonate a nuclear bomb on the moon to commemorate the 50th anniversary of the October Revolution, which happened to coincide with a lunar eclipse on November 7,
  • 1957.
  • Such a plan did exist, but documents discovered thus far only date the plans from 1958.
  • Either way, no bomb went off on November 7, so the U.S. government believed that if they could set off an explosion of their own, it would show a technological advantage and raise the public's morale.
  • ARF's team at the Illinois Institute of Technology was led by Leonard Reifel, who was adamant that the rate of the U.S. Air Force's development of ICBMs would make the project feasible by 1959.
  • If they addressed certain issues, Reifel believed they could hit a target on the surface of the moon with an accuracy of under two miles.
  • The first issue was the size of the bomb.
  • The team originally wanted to detonate a full hydrogen bomb, but the U.S. Air Force rejected this idea since it would require a payload too heavy for the rocket.
  • Instead, the team settled on a W-25 warhead, a small bomb only based on nuclear fission, unlike the fusion of the hydrogen bomb.
  • Weighing only 220 pounds, or 100 kilograms, the W-25 had a yield of just 1.7 kilotons, a mere 10% of the little-boy atomic bomb that was dropped on Hiroshima, and just 0.01% of Castle Bravo, the United States' most powerful hydrogen bomb at the time,
  • And to this day with a yield of 15 megatons.
  • As you might imagine, this meant that the W-25 explosion would be much harder to see than the massive burst of light from the hydrogen bomb that was originally envisioned.
  • As a result, ARF decided that they'd have to detonate the bomb along the moon's terminator, the dividing line of twilight between the light of the sun and the darkness of the moon's shadow.
  • This would make the light of the explosion the most visible, while simultaneously allowing direct sunlight to reflect off the resulting dust cloud, making that visible as well.
  • At first glance, all of this seemed simple enough, and you might think that if the US government could detonate so many bombs in the desert and on Pacific islands, what would the problem be with detonating one on a dead space rock hundreds of thousands of miles away?
  • Well, there are quite a few reasons.
  • For one thing, the research team feared it would interfere with future scientific investigation.
  • For instance, it would cause problems for measuring the moon's natural background radiation.
  • More importantly, the US already had long-term plans for manned lunar exploration and even colonization, and they worried about the danger fallout would pose for other explorers.
  • Again, you might wonder why they treated the entire lunar surface with more deference than New Mexico or the Bikini Atoll, but unfortunately, none of the leaked documents explained that rationale.
  • However, by far the biggest concern was, well, missing.
  • Keep in mind that in 1958, no man-made object had yet reached the moon.
  • The first was the Soviet Luna 2 mission in September, 1959.
  • It wasn't a given that the scientists could aim the rocket well enough over such a long range, and there was the slight fear that it could miss the moon but come close enough to wrap back around and shoot back to Earth.
  • A more probable scenario was that the rocket would fail to leave the atmosphere, or Earth's orbit altogether, which would be a major risk if it fell back down and landed in a populated area.
  • As a result of these concerns, as well as the Partial Nuclear Test Ban Treaty signed in 1963 and the Outer Space Treaty signed in 1967, not to mention arguably more spectacular feats like landing men on the moon,
  • The Air Force eventually abandoned Project A119, just as the Soviets did with their similar Project E4. However, it's difficult to say exactly when it was cancelled due to the lack of documents and facts that have come to light or been released.
  • The
  • Public was totally unaware of Project A119 at the time, and they remained in the Key Davidson discovered two scientific papers related to it, Possible Contribution of Lunar Nuclear Weapons Detonations to the Solution of Some Problems in Planetary Astronomy and Radiological Contamination of the Moon by Nuclear Weapons Detonations.
  • These papers were listed on a 1959 application for an academic scholarship at the Miller Institute at the University of California, Berkeley, by none other than famous astronomer and science educator Carl Sagan,
  • Who had died in 1996.
  • In his application, Sagan discussed Project A119 and his contributions to its goals and research.
  • He'd apparently joined the team as a doctoral student under his advisor, astronomer Gerhard Kuiper, and was primarily tasked with researching the potential expansion of the nuclear explosions resulting dust cloud and essential part of making the detonation easily visible to the American people to boost morale.
  • Davidson published his findings in his biography, Carl Sagan, A Life, which was followed by a review in Nature that went into detail regarding these two papers and Project A119.
  • It also reiterated Davidson's speculation that Sagan's inclusion of this information in his application constituted a breach of national security and the project's confidentiality.
  • With the story spreading fast, Leonard Reifel, head of the ARF research team at the Illinois Institute of Technology, broke the silence to speak to the media and confirm the existence of the project.
  • He also revealed that the team had been aware of Sagan's leaking of project details in his application and that they did indeed consider it a breach of confidentiality, though nothing ever came of it.
  • Reifel's comments caused quite a stir and prompted a request via the Freedom of Information Act for documents regarding the project.
  • The Illinois Institute of Technology consequently released a study of Lunar Research Flights Volume 1, now credited to Reifel, but revealed that most other documents had been destroyed during the 1980s.
  • The U.S. government also refused to confirm the existence of Project A119, a stance they maintain to this day.
  • When Leonard Reifel revealed the details of Project A119, he wasn't exactly full of praise.
  • In fact, he said he was horrified that such a gesture to sway public opinion was ever considered.
  • Seventy-three years old at the time, Reifel claimed that he had tried to dissuade the Air Force officials that had hired him.
  • I made it clear at the time there would be a huge cost to science of destroying a pristine lunar environment.
  • He went on to say that he feared the explosion's resulting crater would have ruined the man in the moon we all know so well.
  • Plus, if it had indeed coincided with the Soviet Project E4, it likely would have led to a militarization of space, and a race to achieve military rather than scientific dominance on the moon.
  • With the project now public knowledge, if unofficially, many public figures and academics also offered their condemnation.
  • For example, David Lowry, a British environmental consultant and anti-nuclear activist, called the project obscene.
  • To quote him, To think that the first contact human beings would have had with another world would have been to explode a nuclear bomb.
  • Had they gone ahead, we would never have had the romantic image of Neil Armstrong taking one giant step for mankind.
  • However, Lowry also stated his doubts that A119 was truly a relic of the space race.
  • He also said, The U.S. has always wanted to militarize space, and some of the fanciful ideas currently being put forward will seem as incredible as the idea of nuking the moon in the fifties seems today.
  • Although he didn't provide any details of ideas currently being put forward, it is plausible that nuclear explosions on the moon could be in the future, or that major nuclear and military powers are already considering them as plans for lunar exploration and colonization.
  • That's because while the original project, A119, was solely focused on swaying public opinion and improving morale, a more open-minded approach could likely find scientific uses for a nuclear explosion on the moon.
  • Most notably, small nuclear detonations, lacking the requirement for visibility from Earth, could be used to study both the geological composition of the lunar surface, as well as the effects of nuclear explosions and radiation on the moon.
  • In fact, such studies have already been proposed by Edward Teller, the physicist credited with the development of the hydrogen bomb in 1957, prior to the inception of Project A119.
  • The findings could inform plans to establish manned bases on the moon powered by nuclear reactors such as those envisioned under NASA's Artemis program, which we've made a whole video on.
  • In other words, even though the space race was never punctuated with the awe and horror of looking up to see a mushroom cloud rising from the face of the moon, the work of Project A119, and the scientists involved like Carl Sagan and Leonard Reifel,
  • Might not have been totally for nothing.
  • Who knows?
  • The first nuclear explosion on the moon might not be a rocket from Earth at all, but something detonated by explorers on the lunar surface itself.