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What if We Brought Back the Passenger Pigeon?

Video vocabulary

beyond

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US / bɪ'jɒnd /

UK / biˈɑnd, bɪˈjɑnd /

A2
  • adverb
  • On or to the farther side
  • In addition to
  • preposition
  • Later in time than
  • Out of the limits of

environmental

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US / ɪnˌvaɪrənˈmentl /

UK / ɛnˌvaɪrənˈmɛntl:, -ˌvaɪən /

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

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

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

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

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

lot

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US / lɒt /

UK / lɑt /

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

stomp

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US / stɒmp /

UK / stɑ:mp /

C1
  • noun
  • A walk, dance, or movement with heavy steps
  • verb
  • To walk, dance, or move with heavy steps

amber

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US / ˈæmbə(r) /

UK / ˈæmbɚ /

B2
  • noun
  • Hard, clear yellow dried resin from trees
  • Person's name

bird

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US / bɜ:d /

UK / bɜ:rd /

A1
  • noun
  • Animal with feathers that uses wings to fly

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)

futurist

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US / 'fju:tʃərɪst /

UK / 'fju:tʃərɪst /

B1
  • noun
  • Person who looks into the future

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

real

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US / rɪəl /

UK / ˈriəl, ril /

A1
  • adjecitve
  • Actually existing or happening, not imagined
  • Being important or special

region

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US / 'ri:dʒən /

UK / ˈridʒən /

A2
  • noun
  • Part of a country, of the world, area, etc.

ton

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US / tʌn /

UK / tʌn /

A2
  • noun
  • Unit of weight; 907 kilograms (US); 1016 (UK)

diverse

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US / daɪˈvɜ:s /

UK / dɪˈvɚs, daɪ-, ˈdaɪˌvɚs /

B1
  • adjecitve
  • Being varied or different from each other
  • Very different from each other

most

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US / məʊst /

UK / most /

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

mostly

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US / ˈməʊstli /

UK / ˈmoʊstli /

A2
  • adverb
  • In large part; mainly or chiefly

primordial

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US / praɪˈmɔ:diəl /

UK / praɪˈmɔ:rdiəl /

A1
  • adjecitve
  • Existing from the beginning of time; primary

church

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US / tʃɜ:tʃ /

UK / tʃɚtʃ /

A1
  • noun
  • Building where Christians gather and pray to God
  • An occasion of Christian religious prayer, worship

clone

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US / kləʊn /

UK / kloʊn /

B2
  • verb
  • To make an exact copy of a living thing

effort

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US / ˈefət /

UK / ˈɛfət /

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

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

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

floor

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US / flɔ:(r) /

UK / flɔr, flor /

A1
  • noun
  • Large area used for a particular purpose
  • Part of a room on which you stand
  • Particular level in a building; storey
  • verb
  • To hit or push someone to the ground
  • To surprise or confuse someone who can't respond

help

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US / help /

UK / hɛlp /

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

inject

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US / ɪn'dʒekt /

UK / ɪnˈdʒɛkt /

B1
  • verb
  • To add or put in more (money, energy etc.)
  • To motivate or put energy into something
  • To put medicine into someone with a syringe

layer

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US / ˈleiə /

UK / ˈleɚ /

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

particular

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US / pəˈtɪkjələ(r) /

UK / pɚˈtɪkjəlɚ, pəˈtɪk- /

B2
  • adjecitve
  • One specific (one)
  • Having firm ideas about what is desirable
  • Being special or more than is typical

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

somatic

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US / səʊ'mætɪk /

UK / soˈmætɪk /

C1
  • adjecitve
  • Of the body as opposed to the mind or spirit

extinct

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US / ɪkˈstɪŋkt /

UK / ɪkˈstɪŋkt /

B1
  • adjecitve
  • (Of animal, etc.) having died out; with none left
  • (E.g. of volcano) not active

from

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US / frəm /

UK / frʌm, frɑm,frəm /

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

out

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US / aʊt /

UK / aʊt /

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

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

resource

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US / riˈsɔ:s /

UK / ˈriˌsɔrs, -ˌsors, -ˌzɔrs, -ˌzors, rɪˈsɔrs, -ˈsors, /

A2
  • noun
  • Something that can be used profitably; asset
  • An essential supply of something
  • Resourcefulness; ability to deal with problems
  • verb
  • To obtain (e.g. oil, gas) from its source

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

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

where

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US / hwɛə /

UK / hwɛr, wɛr /

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

trait

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US / treɪt /

UK / tret /

C2
  • noun
  • A particular characteristic that can produce a particular type of behavior

tree

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US / tri: /

UK / tri /

A1
  • noun
  • Tall green plants in a forest

affect

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US / ə'fekt /

UK / əˈfɛkt /

A2
  • verb
  • To cause a change in something else

normally

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US / ˈnɔ:məli /

UK / ˈnɔːrməli /

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

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

scientifically

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US / ˌsaɪən'tɪfɪklɪ /

UK / ˌsaɪən'tɪfɪklɪ /

B1
  • adverb
  • In an manner that follows the rules of science

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

north

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US / nɔ:θ /

UK / nɔ:rθ /

A1
  • adjecitve
  • Coming from the opposite direction to the south
  • noun
  • Direction to your left when facing the rising sun

really

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US / ˈri:əli /

UK / ˈriəˌli, ˈrili /

A1
  • adverb
  • Used to stress something that is said; definitely
  • In a true or accurate manner
  • Very

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

ethic

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US / ˈeθɪk /

UK / ˈɛθɪk /

B1
  • noun
  • Set of moral principles; rules of behavior

genome

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US / ˈdʒi:nəʊm /

UK / ˈdʒi:noʊm /

B2
  • noun
  • Complete set of genetic material in an organism

host

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US / həʊst /

UK / host /

A2
  • noun
  • Mass; a great number
  • Person who entertains guests
  • Plant or animal on or in which parasites live
  • Presenter on a television or radio program
  • verb
  • To be the sponsor of an event, e.g. the Olympics
  • To lead or start a party, program, or other event
  • To lead a TV or radio show as the announcer

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

planet

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US / 'plænɪt /

UK / ˈplænɪt /

A2
  • noun
  • One of the bodies that orbit the sun

museum

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US / mjuˈzi:əm /

UK / mjuˈziəm /

A2
  • noun
  • Building to display art/science/history objects

niche

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US / nɪtʃ /

UK / ni:ʃ /

B2
  • noun
  • Small part of a market representing an opportunity
  • Area with all specific plant/animal needs to live
  • A specialized business, job or activity
  • Space cut into a wall, as to display a statue

not

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US / nɒt /

UK / nɑt /

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

our

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US / 'aʊə(r) /

UK / aʊr /

A1
  • determiner
  • Belonging to us

opening

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US / ˈəʊpnɪŋ /

UK / ˈoʊpnɪŋ /

A1
  • noun
  • Free job; job you can apply for
  • Action of starting something, e.g. a new business
  • verb
  • To make accessible or able to be used, e.g. road
  • To start the activities or services of a business
  • To make a space or hole appear in something
  • To move or change so that it is no longer closed
  • To start something, e.g. a new business

reproduce

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US / ˌri:prə'dju:s /

UK / ˌriprəˈdus, -ˈdjus /

B1
  • verb
  • To make a copy of something
  • To have children/young; grow roots/new plants

survive

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US / sə'vaɪv /

UK / sɚˈvaɪv /

A2
  • verb
  • To continue to live despite illness or trouble

copy

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US / ˈkɒpi /

UK / ˈkɑ:pi /

A1
  • noun
  • A counter for items that are the same
  • Fake product pretending to be an original
  • An imitation of an original
  • A duplicate of a paper printed in a photocopier
  • Written text for printing, use in ads, etc.
  • verb
  • To make something look the same as the original
  • To act in the exact same way as someone else
  • To read and then write down what you read

edit

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US / ˈedɪt /

UK / ˈɛdɪt /

A2
  • verb
  • To check and make changes before publication
  • To prepare scenes of a film into the final version

technologist

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US / tekˈnɒlədʒɪst /

UK / tekˈnɑ:lədʒɪst /

B1
  • noun
  • Person who works with technologies

towards

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US / tə'wɔ:dz /

UK / 'təuədz, twɔ:dz /

A1
  • preposition
  • In the direction of someone or something

effect

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US / ɪ'fekt /

UK / ɪˈfɛkt /

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

can

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US / kæn /

UK / kən,kæn /

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

freeze

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US / fri:z /

UK / friz /

A2
  • noun
  • Sudden stop to prevent increase or decreases
  • Period of very cold weather under zero degrees
  • verb
  • To harden to a solid below zero degrees
  • To store an item of food in a cold place
  • To make someone to not want to communicate
  • To stop moving and be still; stay the same

pattern

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US / 'pætn /

UK / ˈpætən /

A2
  • noun
  • Model to follow in making or doing something
  • Colors or shapes which are repeated on objects
  • Regular repeated behavior
  • verb
  • To copy the way something else is made

scale

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US / skeɪl /

UK / skel /

A2
  • noun
  • Size, level, or amount when compared
  • Small hard plates that cover the body of fish
  • Device that is used to weigh a person or thing
  • Range of numbers from the lowest to the highest
  • Dimensions or size of something
  • verb
  • To change the size of but keep the proportions
  • To climb something large (e.g. a mountain)
  • To remove the scales of a fish

pessimistic

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US / ˌpesɪˈmɪstɪk /

UK / ˌpesɪˈmɪstɪk /

B1
  • adjecitve
  • Having negative feelings about the future

support

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US / səˈpɔ:t /

UK / səˈpɔrt, -ˈport /

A1
  • noun
  • Assistance or advice given to someone
  • Evidence that helps prove something is true
  • A thing to hold up or prevent from falling down
  • verb
  • To give assistance or advice to someone
  • To help prove or show that something is true
  • To hold up or prevent from falling down

wide

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US / waɪd /

UK / waɪd /

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

behaviour

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US / bɪˈheɪvjə(r) /

UK / bɪˈhevjɚ /

A1
  • noun
  • The way a person or thing acts; manner

carry

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US / ˈkæri /

UK / ˈkæri /

A1
  • verb
  • To have a child, be pregnant
  • To have a disease you might give to others
  • (Of stores) to sell a particular product
  • To hold something and move it to another place
  • To travel a long distance (sound)
  • To support the weight or burden of something

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

save

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US / seɪv /

UK / sev /

A1
  • noun
  • Preventing a player in a game from scoring a goal
  • preposition
  • Except; not including
  • verb
  • To make your computer keep a file
  • To keep for future use
  • To make something unnecessary; prevent
  • To keep money so that you will have it later
  • To keep something for future use, such as money
  • To keep or rescue someone or something from harm
  • To prevent a player in a game from scoring a goal
  • To avoid the unnecessary waste of energy, etc.

same

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US / seɪm /

UK / sem /

A1
  • adjecitve
  • Being equal in quality and amount
  • Identical; not different
  • Not changing; constant

role

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US / rəʊl /

UK / rol /

A2
  • noun
  • Character played by an actor
  • Part you play in an activity; job; responsibility

george

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US / dʒɔ:dʒ /

UK / dʒɔ:dʒ /

A1
  • noun
  • Christian martyr; patron saint of England; hero of the legend of Saint George and the Dragon in whic

industrialization

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US / ɪnˌdʌstrɪəlaɪ'zeɪʃn /

UK / ɪnˌdʌstrɪələˈzeʃən /

B1
  • noun
  • Process of creating and developing many businesses

hybrid

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US / ˈhaɪbrɪd /

UK / ˈhaɪbrɪd /

B2
  • adjecitve
  • Formed from combining different things
  • noun
  • Something formed from combining different things

repair

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US / rɪˈpeə(r) /

UK / rɪˈper /

A2
  • noun
  • How well cared for a thing is; physical condition
  • Action to fix or restore something that is broken
  • verb
  • To fix or restore something that is broken
  • To fix or correct the damage that one has caused

testing

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US / ˈtestɪŋ /

UK / ˈtestɪŋ /

A1
  • 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

thin

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US / θɪn /

UK / θɪn /

A1
  • adjecitve
  • Flowing with ease; with a high percentage of water
  • (Of air) having little oxygen
  • Being or growing far apart in small amounts
  • Not thick; not wide in size
  • Having little flesh or fat on the body
  • Being weak or useless
  • verb
  • To make flow more easily by adding water or liquid

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

barrier

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US / 'bærɪə(r) /

UK / ˈbæriɚ /

B1
  • noun
  • Difficult situation preventing something happening
  • Structure or object that stops free movement

but

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US / bət /

UK / bʌt,bət /

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

expansion

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US / ɪkˈspænʃn /

UK / ɪkˈspænʃən /

B2
  • noun
  • Making or becoming larger

dolly

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US / ˈdɒli /

UK / ˈdɑːli /

C2
  • noun
  • Childish form of 'doll'
  • Person's name

good

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US / ɡʊd /

UK / ɡʊd /

A1
  • adjecitve
  • Proper, appropriate or right
  • (Of an amount) enough; plenty
  • Excellent; high quality
  • Acting well or properly; of moral character
  • In a positive or happy emotional state
  • noun
  • Advantage or benefit

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

hatch

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US / hætʃ /

UK / hætʃ /

B1
  • noun
  • Door or covering to an opening in boat's deck
  • other
  • To be born or come out from an egg
  • verb
  • To be born or come out from an egg
  • To produce or create an idea or plan secretly

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

permafrost

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US / ˈpɜ:məfrɒst /

UK / ˈpɜ:rməfrɔ:st /

C2
  • noun
  • Ground that is permanently frozen

woolly

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US / 'wʊlɪ /

UK / ˈwʊli /

C2
  • adverb
  • Confused and vague; used especially of thinking
  • Having a fluffy character or appearance

actually

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US / ˈæktʃuəli /

UK / ˈæktʃuəli /

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

deserve

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US / dɪ'zɜ:v /

UK / dɪˈzɚv /

A2
  • verb
  • To be worthy of, e.g. getting praise or attention

genomic

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US / dʒi:'ŋəʊmɪk /

UK / dʒi:'ŋoʊmɪk /

B2
  • adjecitve
  • Concerning the set of genetic material in a cell

immediately

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US / ɪˈmi:diətli /

UK / ɪˈmidiɪtli /

A1
  • adverb
  • Without any delay; straight away

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

stick

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US / stɪk /

UK / stɪk /

A2
  • noun
  • Long thin piece of wood from a tree
  • verb
  • To push a sharp or pointed object into something
  • To join together using glue or paste
  • To remain in one place or position for a long time

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

embryo

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US / ˈembriəʊ /

UK / ˈɛmbriˌo /

B2
  • noun
  • Tiny plant stored inside a seed
  • Early form of an unborn human or animal

lock

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US / lɒk /

UK / lɑ:k /

A2
  • noun
  • Small portion of your hair that hangs together
  • Place on a door, etc. that you close with a key
  • verb
  • To become fixed in place and hard to move
  • To use a key, code so others can't open something

jurassic

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US / dʒʊˈræsɪk /

UK / dʒʊˈræsɪk /

A1
  • adjecitve
  • From million to million years ago; dinosaurs; conifers

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

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

consider

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US / kən'sɪdə(r) /

UK / kənˈsɪdər /

A1
  • verb
  • To think carefully about something

complicated

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US / 'kɒmplɪkeɪtɪd /

UK / ˈkɑmplɪˌketɪd /

B1
  • adjecitve
  • Difficult to do, understand or use
  • verb
  • To make more difficult to do, understand or use

population

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US / ˌpɒpjuˈleɪʃn /

UK / ˌpɑpjəˈleʃən /

A2
  • noun
  • Number of people who live in a country, area etc.

perfectly

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US / ˈpɜ:fɪktli /

UK / ˈpəfɪktli /

A2
  • adverb
  • In a faultless manner; without mistakes

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

basic

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US / 'beɪsɪk /

UK / ˈbesɪk /

A1
  • adjecitve
  • At the most important or easiest (beginner) level

code

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US / kəʊd /

UK / kod /

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

fairly

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US / 'feəlɪ /

UK / ˈfɛrli /

A2
  • adverb
  • Quite; pretty; between very and a little
  • In a manner that is right and acceptable

normal

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US / 'nɔ:ml /

UK / ˈnɔrməl /

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

reproductive

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US / ˌri:prəˈdʌktɪv /

UK / ˌriprəˈdʌktɪv /

B1
  • adjecitve
  • Concerning the process of making children
  • Relating to having children, young, or new plants

too

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US / tu: /

UK / tu /

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

balance

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US / ˈbæləns /

UK / ˈbæləns /

A2
  • noun
  • Instrument for weighing things
  • Being stable; having equal weight on both sides
  • Money remaining after paying costs
  • verb
  • To be steady by having equal weight on both sides
  • To make two or more things equal

balanced

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US / ˈbælənst /

UK / ˈbælənst /

A2
  • adjecitve
  • Being stable having equal weight on both sides
  • verb
  • To be steady by having equal weight on both sides
  • To make two or more things equal

continue

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US / kən'tɪnju: /

UK / kənˈtɪnju /

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

age

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US / eɪdʒ /

UK / edʒ /

A1
  • verb
  • To keep food, wine for a long time to improve it
  • To get older
  • noun
  • Period of time in history
  • Number of years a person or thing has lived

countless

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US / ˈkaʊntləs /

UK / ˈkaʊntlɪs /

B1
  • adjecitve
  • Being too many to be numbered or imagined

ecological

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US / ˌi:kəˈlɒdʒɪkl /

UK / ˌi:kəˈlɑ:dʒɪkl /

B1
  • adjecitve
  • Concerning the environment, plants, or animals

godfather

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US / 'ɡɒdfɑ:ðə(r) /

UK / ˈɡɑdˌfɑðɚ /

B2
  • noun
  • Man who acts as a sponsor for a child at baptism

massive

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US / ˈmæsɪv /

UK / ˈmæsɪv /

B1
  • adjecitve
  • Very big; large; too big

science

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US / 'saɪəns /

UK / ˈsaɪəns /

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

sort

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US / sɔ:t /

UK / sɔrt /

A1
  • noun
  • Group or class of similar things or people
  • verb
  • To organize things by putting them into groups
  • To deal with things in an organized way

should

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US / ʃʊd /

UK / ʃʊd /

A1
  • other
  • Used to indicate what is proper or reasonable

truth

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US / tru:θ /

UK / truθ /

A2
  • noun
  • Real facts about something

biosphere

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US / ˈbaɪəʊsfɪə(r) /

UK / ˈbaɪoʊsfɪr /

A1
  • noun
  • Surface and atmosphere where living organisms are

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

lay

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US / leɪ /

UK / le /

A2
  • adjecitve
  • Amateur; not being a trained priest
  • verb
  • To place a bet on a game outcome
  • (Of a bird, etc.) to produce eggs from its body
  • To put or set something down in a flat position
  • To set out things on (table) to prepare for a meal

many

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US / 'menɪ /

UK / ˈmɛni /

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

regulate

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US / ˈregjuleɪt /

UK / ˈrɛɡjəˌlet /

A2
  • verb
  • To control something with rules or laws
  • To set/adjust (a clock, etc.); restrict motion in

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

swarm

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US / swɔ:m /

UK / swɔrm /

B1
  • noun
  • Large group of flying insects moving together
  • (Of people) large group of people acting as one
  • verb
  • (Of bees) to form a group and leave the bee hive
  • (Of people) to form a crowd and move together

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

component

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US / kəmˈpəʊnənt /

UK / kəmˈponənt /

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

interact

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US / ˌɪntər'ækt /

UK / ˌɪntɚˈækt /

A2
  • verb
  • To talk or do things with each other

imagine

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US / ɪ'mædʒɪn /

UK / ɪˈmædʒɪn /

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

mammal

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US / 'mæml /

UK / ˈmæməl /

B1
  • noun
  • Animal which drinks milk from its mother

once

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US / wʌns /

UK / wʌns /

A1
  • adverb
  • One time; one instance
  • At a time in the past
  • conjunction
  • When; as soon as

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

stem

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US / stem /

UK / stɛm /

B1
  • noun
  • Long thin central part of a plant, bearing leaves
  • Long thin part supporting something e.g. a light
  • Main part of a word, e.g. 'use' in 'useful'
  • verb
  • To remove the stem of a flower or fruit
  • To start from or be the origin of
  • To stop something bad from spreading or developing

able

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US / 'eɪbl /

UK / ˈebəl /

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

ecosystem

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US / ˈi:kəʊsɪstəm /

UK / ˈɛkoˌsɪstəm, ˈiko- /

B1
  • noun
  • Types of plants and animals in an specific area

fertilize

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US / ˈfɜ:təlaɪz /

UK / ˈfɜ:rtəlaɪz /

B1
  • verb
  • To make pregnant; to put sperm in an egg
  • To add chemicals to produce larger, better plants

flock

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US / flɒk /

UK / flɑ:k /

B2
  • noun
  • Group of animals or birds that live together
  • Group of people who gather or travel together
  • verb
  • To gather together or move as a group

germ

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US / dʒɜ:m /

UK / dʒɚm /

B2
  • noun
  • Tiny organism that can cause sickness and disease

restore

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US / rɪˈstɔ:(r) /

UK / rɪˈstɔr, -ˈstor /

B1
  • verb
  • To return a thing to its original condition

three

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US / θri: /

UK / θri /

A1
  • number
  • Number 3

climate

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US / ˈklaɪmət /

UK / ˈklaɪmɪt /

A2
  • noun
  • Typical weather conditions in a particular place

also

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US / 'ɔ:lsəʊ /

UK / ˈɔlso /

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

destructive

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US / dɪ'strʌktɪv /

UK / dɪˈstrʌktɪv /

B2
  • adjecitve
  • Causing a very large amount of damage

captivity

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US / kæp'tɪvətɪ /

UK / kæpˈtɪvɪti /

B1
  • noun
  • State of being held against your will (in prison)

female

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US / 'fi:meɪl /

UK / ˈfiˌmel /

A2
  • adjecitve
  • Person of the sex that gives birth to babies

dire

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US / ˈdaɪə(r) /

UK / daɪr /

B2
  • adjecitve
  • (E.g. of consequences) very serious

kind

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US / kaɪnd /

UK / kaɪnd /

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

identify

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US / aɪ'dentɪfaɪ /

UK / aɪˈdɛntəˌfaɪ /

B1
  • verb
  • To indicate who or what someone or something is

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)

live

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US / lɪv /

UK / liv /

A1
  • adjecitve
  • Being broadcast as events happen, not recorded
  • Carrying electric current; able to give a shock
  • Glowing because burning; hot
  • Not yet killed (for food)
  • adverb
  • (Music, drama) as it is performed
  • verb
  • To be alive
  • To experience a particular type of life
  • To make your home in a house or town

responsibly

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US / rɪˈspɒnsəbli /

UK / rɪˈspɑ:nsəbli /

A1
  • adverb
  • In a responsible way; sensibly

reverse

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US / rɪ'vɜ:s /

UK / rɪˈvɚs /

B1
  • noun
  • Setting that makes the vehicle go backward
  • (Drive a vehicle) backward gear of a vehicle
  • Instance of a significant change, for the worse
  • In a backwards order
  • Back part or side of something
  • verb
  • To drive a vehicle backward
  • To change to an opposite state, way or condition
  • To change back to a previous or normal condition
  • To change something to its opposite

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

chicken

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US / ˈtʃɪkɪn /

UK / ˈtʃɪkən /

A1
  • adjecitve
  • Acting like a coward
  • noun
  • A bird raised for its eggs and meat
  • Someone who is too afraid to do something

play

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US / pleɪ /

UK / pleɪ /

A1
  • noun
  • Loose, free movement between two objects
  • Single action in a sports game
  • Performance in which people act in a theater
  • verb
  • To act as a character in a movie, or on stage
  • To perform music on an instrument
  • To use a device, e.g. a video game
  • To do something for enjoyment and fun
  • To do or perform a game or sport

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

flourish

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US / 'flʌrɪʃ /

UK / ˈflɚrɪʃ, ˈflʌr- /

B2
  • noun
  • Fancy addition or decoration
  • verb
  • To show and direct attention by waving something
  • To add a fancy addition or decoration
  • To be healthy or successful

entrepreneur

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US / ˌɒntrəprə'nɜ:(r) /

UK / ˌɑntrəprəˈnɚ, -ˈnʊr /

B2
  • noun
  • Businessperson who develops new businesses

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

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

relative

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US / ˈrelətɪv /

UK / ˈrɛlətɪv /

A2
  • adjecitve
  • Measured or considered in comparison to another
  • (Grammar) referring to words that appear earlier
  • noun
  • Members of the family
  • Humans or animals sharing the same family history

pull

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US / pʊl /

UK / pʊl /

A1
  • noun
  • Act of breathing in smoke, as from a pipe
  • Force something has that draws other things to it
  • Using your hands to move something to you
  • verb
  • To breathe in smoke, as from a pipe
  • To hold something and move it toward you
  • To remove something by force

than

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US / ðən /

UK / ðən /

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

big

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US / bɪɡ /

UK / bɪɡ /

A1
  • adjecitve
  • Popular
  • Serious
  • Large

aka

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US / ˌeɪkeɪ'eɪ /

UK / ˌeɪkeɪ'eɪ /

A1
  • abbreviation
  • AKA is an acronym for Also Known as

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

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

let

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US / let /

UK / lɛt /

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

researcher

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US / rɪ'sɜ:tʃə(r) /

UK / rɪˈsətʃɚ /

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

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

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

velociraptor

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US / vəˈlɒsɪræptə(r) /

UK / vəˈlɑːsɪræptər /

A1
  • noun
  • Small active carnivore that probably fed on protoceratops; possibly related more closely to birds th

instrumental

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US / ˌɪnstrəˈmentl /

UK / ˌɪnstrəˈmɛntl /

B1
  • adjecitve
  • Having a strong influence to get a desired result
  • Including musical instruments without singing

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

predict

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US / prɪ'dɪkt /

UK / prɪˈdɪkt /

A2
  • verb
  • To guess or estimate what will or might happen

park

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US / pɑ:k /

UK / pɑ:rk /

A1
  • noun
  • Person's name
  • Public green area in a town for exercise, relaxing
  • Field upon which a sport is played, e.g. baseball
  • verb
  • To stay still without moving
  • To leave your car, bike in a certain place

sperm

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US / spɜ:m /

UK / spə:m /

C2
  • noun
  • Cell produced by men and needed for reproduction

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

essential

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US / ɪ'senʃl /

UK / ɪˈsɛnʃəl /

A2
  • adjecitve
  • Extremely or most important and necessary

frozen

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US / 'frəʊzn /

UK / ˈfroʊzn /

A2
  • adjecitve
  • Hard, solid because it is below zero degrees
  • verb
  • To store an item of food in a cold place
  • To make someone to not want to communicate
  • To stop moving and be still; stay the same

genetic

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US / dʒəˈnetɪk /

UK / dʒəˈnɛtɪk /

B1
  • adjecitve
  • Of, relating to, or controlled by genes

half

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US / hɑ:f /

UK / hæf, hɑf /

A1
  • adjecitve
  • Not complete
  • adverb
  • Partly; somewhat
  • noun
  • One of two equal periods of game time in a sport
  • The part you get when one is divided into two;

keystone

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US / 'ki:stəʊn /

UK / ˈkiˌston /

C2
  • noun
  • Central building block at the top of an arch

plant

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US / plɑ:nt /

UK / plænt /

A2
  • noun
  • Factory or a place where things are made
  • Living thing with leaves and roots growing in soil
  • verb
  • To firmly position something (in the ground)
  • To put seeds, flowers, trees in the ground

strip

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US / strɪp /

UK / strɪp /

B1
  • noun
  • Long narrow piece, such as ribbon or land
  • verb
  • To remove your clothes (often sexily for someone)
  • To remove something, e.g. paint from a wall
  • To take property, dignity away from (someone)

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

wildlife

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US / ˈwaɪldlaɪf /

UK / ˈwaɪldˌlaɪf /

B1
  • noun
  • All wild animals

below

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US / bɪ'ləʊ /

UK / bɪˈlo /

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

biodiversity

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US / ˌbaɪəʊdaɪˈvɜ:səti /

UK / ˌbaɪoʊdaɪˈvɜ:rsəti /

A1
  • noun
  • The variation of life forms in an environment

delicate

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US / 'delɪkət /

UK / ˈdɛlɪkɪt /

B1
  • adjecitve
  • Easily broken or damaged
  • Finely made, with great care

forest

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US / 'fɒrɪst /

UK / ˈfɔrɪst, ˈfɑr- /

A1
  • noun
  • Large area with many trees

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

overhead

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US / ˌəʊvəˈhed /

UK / ˌoʊvərˈhed /

B1
  • adjecitve
  • Located above your head or in the sky
  • Above a person's head or in the sky
  • noun
  • Regular and necessary cost, such as rent and heat

porous

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US / ˈpɔ:rəs /

UK / ˈpɔrəs, ˈpor- /

C1
  • adjecitve
  • With many tiny holes so liquid, etc. passes through
  • (Of borders) easy for people to pass through

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

blot

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US / blɒt /

UK / blɑ:t /

B2
  • verb
  • To remove a spot by putting absorbent material on
  • To block out something so it cannot be seen
  • To make a spot by accident

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

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

jumpstart

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US / /

UK / /

A1
  • other
  • Start (a car engine whose battery is dead) by connecting it to another car's battery
  • Start or re-start vigorously
  • Starting an automobile engine that has a weak battery by means of jumper cables to another car

modify

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US / ˈmɒdɪfaɪ /

UK / ˈmɑ:dɪfaɪ /

B1
  • verb
  • To make minor change to something

ago

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US / əˈgəʊ /

UK / əˈgoʊ /

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

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

outsize

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US / ˈautˌsaiz /

UK / ˈaʊtˌsaɪz /

B1
  • adjecitve
  • Too big for a person or other thing

move

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US / mu:v /

UK / muv /

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

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

tornado

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US / tɔ:'neɪdəʊ /

UK / tɔrˈnedo /

B2
  • noun
  • Violent storm with strong winds

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

fill

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US / fɪl /

UK / fɪl /

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

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

change

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US / tʃeɪndʒ /

UK / tʃendʒ /

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

america

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US / ə'merɪkə /

UK / əˈmɛrɪkə /

A1
  • noun
  • The United States of America; North America and/or South America

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

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”

passenger

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US / 'pæsɪndʒə(r) /

UK / ˈpæsəndʒɚ /

A2
  • noun
  • Person who is traveling in a vehicle

remove

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US / rɪˈmu:v /

UK / rɪˈmuv /

A1
  • verb
  • To get rid of something completely
  • To make someone leave his or her job or position
  • To move, erase or take away from a place
  • To take something off (e.g. clothing)

who

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US / hu: /

UK / hu /

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

vacant

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US / ˈveɪkənt /

UK / ˈvekənt /

B1
  • adjecitve
  • Having no fixtures, furniture, or inhabitants

billion

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US / ˈbɪljən /

UK / ˈbɪljən /

A2
  • noun
  • Number 1,000,000,000

damage

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US / ˈdæmɪdʒ /

UK / ˈdæmɪdʒ /

A2
  • noun
  • Physical harm that is done to something
  • verb
  • To harm physically; to hurt or break something

they

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US / ðeɪ /

UK / ðe /

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

very

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US / 'verɪ /

UK / ˈvɛri /

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

decay

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US / dɪˈkeɪ /

UK / dɪˈke /

B1
  • noun
  • Slow loss of physical or mental health
  • verb
  • To be slowly destroyed by natural processes; rot
  • To lose health or strength

introduce

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US / ˌɪntrəˈdju:s /

UK / ˌɪntrəˈdus, -ˈdjus /

A1
  • verb
  • To open an essay to set the scene
  • To guide or explain something, e.g. a town
  • To begin the use of a new thing or practice
  • To make someone known to another by name
  • To insert or put something inside another thing

honestly

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US / ˈɒnɪstli /

UK / ˈɑnɪstli /

A2
  • adverb
  • With truth or sincerity; I'm being honest with you

main

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US / meɪn /

UK / men /

A1
  • adjecitve
  • Most important; most often used

pretty

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US / 'prɪtɪ /

UK / ˈprɪti /

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

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

several

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US / ˈsevrəl /

UK / ˈsɛvərəl,ˈsɛvrəl /

A1
  • adjecitve
  • Many of
  • pronoun
  • More than two but not a large amount

bring

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US / brɪŋ /

UK / brɪŋ /

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

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

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

conservation

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US / ˌkɒnsəˈveɪʃn /

UK / ˌkɑ:nsərˈveɪʃn /

B1
  • noun
  • Protecting the environment or a species
  • Act of keeping in reserve

case

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US / keɪs /

UK / kes /

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

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

great

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US / ɡreɪt /

UK / ɡret /

A1
  • adjecitve
  • Very large in size
  • Very important
  • Very good; fantastic; wonderful
  • adverb
  • Very good; better than before
  • noun
  • Successful and well-admired person

mammoth

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US / ˈmæməθ /

UK / ˈmæməθ /

B2
  • adjecitve
  • Huge in size
  • other
  • Large extinct animal resembling a hairy elephant

lab

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US / læb /

UK / læb /

B1
  • noun
  • Short for 'laboratory'

populous

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US / ˈpɒpjələs /

UK / ˈpɑpjələs /

C1
  • adjecitve
  • Having a large population

physiology

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US / ˌfɪziˈɒlədʒi /

UK / ˌfɪziˈɑ:lədʒi /

B2
  • noun
  • Ways in which the parts of a living thing operate

tend

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US / tend /

UK / tɛnd /

A2
  • verb
  • To move or act in a certain manner
  • To take care of
  • To regularly behave in a certain way

total

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US / ˈtəʊtl /

UK / ˈtoʊtl /

A1
  • adjecitve
  • Complete
  • noun
  • Whole number or amount of something
  • verb
  • To damage a car beyond repair

hardwood

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US / ˈhɑ:dwʊd /

UK / ˈhɑrdˌwʊd /

C2
  • noun
  • Wood from broad-leaved older trees with hard wood

place

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US / pleɪs /

UK / ples /

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

sequence

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US / 'si:kwəns /

UK / ˈsikwəns, -ˌkwɛns /

A2
  • noun
  • Part of a movie showing one part of the story
  • verb
  • To arrange things in an order they should happen

anymore

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US / 'enɪmɔ: /

UK / ˌɛniˈmɔr, -ˈmor /

A2
  • adverb
  • No longer; no more

egg

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US / eg /

UK / ɛɡ /

A2
  • noun
  • Hard-shelled thing from which a young bird is born

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

deceased

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US / dɪˈsi:st /

UK / dɪˈsist /

B2
  • adjecitve
  • Dead; not alive

dna

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US / ˌdiː en ˈeɪ /

UK / ˌdiː en ˈeɪ /

B2
  • noun
  • Chemical in living cells with genetic information

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

fire

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US / 'faɪə(r) /

UK / faɪr /

A1
  • noun
  • Heat and the flame produced when burning
  • Intense energy for or about something
  • verb
  • To apply heat to something to make it hard
  • To make a person leave their job; dismiss
  • To shoot a gun or weapon
  • To launch something into the sky, e.g. a rocket
  • To start working on something e.g. a project

include

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US / ɪnˈklu:d /

UK / ɪnˈklud /

A1
  • verb
  • To make someone, something part of a group

preserve

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US / prɪˈzɜ:v /

UK / prɪˈzɜ:rv /

B1
  • noun
  • Protected area of land with plants and animals
  • verb
  • To cook food so it can be kept for long periods
  • To protect something from harm, loss or damage
  • To keep or maintain unchanged or perfect

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

then

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US / ðen /

UK / ðɛn /

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

disturbance

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US / dɪˈstɜ:bəns /

UK / dɪˈstɚbəns /

A2
  • noun
  • Public incident in which some people act badly
  • Being disturbed; something that causes disruption

endanger

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US / ɪn'deɪndʒə(r) /

UK / ɛnˈdendʒɚ /

B1
  • verb
  • To bring a person/thing into a dangerous situation

least

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US / li:st /

UK / list /

A1
  • adverb
  • In the smallest or lowest way
  • noun
  • Something that is of the lowest or smallest degree

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

she

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US / ʃɪ /

UK / ʃi /

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

bacteria

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US / bæk'tɪərɪə /

UK / bækˈtɪriə /

B2
  • noun
  • The very small creatures that can cause disease

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

get

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US / ɡet /

UK / ɡɛt /

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

plummet

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US / ˈplʌmɪt /

UK / ˈplʌmɪt /

C1
  • verb
  • To fall quickly, as from the sky

beth

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US / beiθ,beθ /

UK / bɛt /

A1
  • noun
  • Second letter of the Hebrew alphabet

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

different

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US / ˈdɪfrənt /

UK / ˈdɪfrənt /

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

fly

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US / flaɪ /

UK / flai /

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

health

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US / helθ /

UK / hɛlθ /

A1
  • noun
  • (Person, company) being in a good condition; well

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

quest

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US / kwest /

UK / kwɛst /

B2
  • noun
  • Long and challenging journey to find something

people

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US / 'pi:pl /

UK / ˈpipəl /

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

reaction

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US / rɪ'ækʃn /

UK / riˈækʃən /

A2
  • noun
  • Bodily response to a drug or something eaten
  • Feeling or action in response to something

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’

thrive

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US / θraɪv /

UK / θraɪv /

B2
  • verb
  • To be or become healthy or successful

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

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

number

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US / ˈnʌmbə(r) /

UK / ˈnʌmbɚ /

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

specie

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US / 'spi:ʃi: /

UK / 'spi:ʃɪ /

B1
  • noun
  • Singular of species

tooth

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US / tu:θ /

UK / tuθ /

A1
  • noun
  • A sharp points on the edge of a machine or tool
  • Hard white things in the mouth, used to bite

tell

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US / tel /

UK / tɛl /

A1
  • verb
  • To (strongly) advise a person to do something
  • To be able to guess
  • To say or communicate information to someone
  • To inform, but without speaking; indicate
  • To have a negative effect on someone
  • To order someone to do something; command
  • To recognize something based on certain signs
  • To report something to an authority
  • To explain something or teach someone something

cell

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US / sel /

UK / sɛl /

A2
  • noun
  • Smallest unit of living things in biology
  • Group of people - often from a secret organization
  • Prisoner's room in a jail
  • Shortened form of 'cellphone'

alter

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US / ˈɔ:ltə(r) /

UK / ˈɔltɚ /

A2
  • verb
  • To change so (clothing) fits better

example

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US / ɪgˈzɑ:mpl /

UK / ɪɡˈzæmpəl /

A1
  • noun
  • Thing, person which represents a category

happen

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US / 'hæpən /

UK / ˈhæpən /

A1
  • verb
  • To take place or occur

ground

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US / graʊnd /

UK / ɡraʊnd /

A1
  • noun
  • Connection of electrical equipment to earth
  • Place where people play particular sports
  • Solid surface of the earth that we stand on
  • verb
  • To break (coffee, etc.) into tiny bits with machine
  • To make loud jarring noise by pressing hard
  • To make sharp or smooth through friction
  • To press together with force making a sound
  • To punish someone by not allowing them to go out
  • To hit the bottom
  • (Of boat) to hit the bottom so it cannot move
  • To prevent a plane from taking off
  • To place the ball over the goal line in rugby

each

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US / i:tʃ /

UK / itʃ /

A1
  • determiner
  • Every one of two or more things
  • pronoun
  • Per one person or thing

method

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US / 'meθəd /

UK / ˈmɛθəd /

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

regenerate

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US / rɪˈdʒenəreɪt /

UK / rɪˈdʒɛnəˌret /

B2
  • verb
  • To form or create new things

resurrect

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US / ˌrezə'rekt /

UK / ˌrɛzəˈrɛkt /

C2
  • verb
  • To make something forgotten/lost take on new life
  • To bring a person back from the dead

track

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US / træk /

UK / træk /

A2
  • noun
  • A circular course for running
  • Course or way someone takes, e.g. in education
  • Path in a field or a forest made by walkers
  • Often circular course laid out for car racing
  • One of multiple musical recordings on an album
  • Band surrounding the wheels of a tank
  • Metal lines that trains ride on
  • verb
  • To use marks to follow a wild animal
  • To move a certain way/follow a particular course
  • To record and examine the progress of something

undo

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US / ʌnˈdu: /

UK / ʌnˈdu /

A2
  • verb
  • To open, untie or loosen something

benefit

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US / 'benɪfɪt /

UK / ˈbɛnəfɪt /

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

protection

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US / prəˈtekʃn /

UK / prəˈtɛkʃən /

A2
  • noun
  • Being kept from harm
  • Something that defends against harm or danger

combination

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US / ˌkɒmbɪ'neɪʃn /

UK / ˌkɑmbəˈneʃən /

B1
  • noun
  • Series of letters or numbers needed to open a lock
  • Act or result of mixing things together

few

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US / fju: /

UK / fju /

A1
  • pronoun
  • Not many, a small number

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

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

exact

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US / ɪɡ'zækt /

UK / ɪɡˈzækt /

A2
  • adjecitve
  • Completely correct; accurate; specific
  • verb
  • To get something, sometimes using force

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

grow

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US / ɡrəʊ /

UK / ɡro /

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

invasive

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US / ɪnˈveɪsɪv /

UK / ɪnˈvesɪv /

C1
  • adjecitve
  • Entering the body, etc. in a destructive way

nuclear

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US / ˈnju:kliə(r) /

UK / ˈnukliɚ, ˈnju- /

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

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

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

start

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US / stɑ:t /

UK / stɑrt /

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

well

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US / wel /

UK / wɛl /

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

animal

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US / ˈænɪml /

UK / ˈænəməl /

A1
  • noun
  • A living creature that is not a plant or person

cycle

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US / ˈsaɪkl /

UK / ˈsaɪkəl /

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

brontosaurus

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US / ˌbrɒntəˈsɔːrəs /

UK / ˌbrɑːntəˈsɔːrəs /

A1
  • noun

fully

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US / 'fʊlɪ /

UK / ˈfʊli /

A1
  • adverb
  • Completely or entirely

home

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US / həʊm /

UK / hom /

A1
  • adjecitve
  • A sports team's own field or place of play
  • adverb
  • Into the correct or intended position
  • noun
  • House, apartment or building to be rented or sold
  • Institution for sick or elderly people
  • Place where a person or a family lives
  • Country where a person lives or was born
  • Region that is native to peoples, plant or animals
  • verb
  • To move towards a particular target location

duck

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US / dʌk /

UK / dʌk /

B1
  • noun
  • Common type of water bird
  • someone's face when their lips are pushed outwards, especially in photographs
  • verb
  • To avoid doing something that is difficult
  • To lower your head to avoid hitting 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)

modern

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US / ˈmɔdən /

UK / ˈmɑdən /

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

selection

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US / sɪˈlekʃn /

UK / sɪˈlɛkʃən /

A2
  • noun
  • Process of choosing someone or something carefully
  • Something chosen carefully from a larger group
  • Range or variety of things you can choose from

talk

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US / tɔ:k /

UK / tɔk /

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

technology

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US / tek'nɒlədʒɪ /

UK / tɛkˈnɑlədʒi /

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

steward

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US / ˈstju:əd /

UK / ˈstu:ərd /

B1
  • noun
  • Person who manages an event or activity
  • Male cabin attendant on an airplane

begin

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US / bɪ'ɡɪn /

UK / ˈbeɡɪn /

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

kill

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US / kɪl /

UK / kɪl /

A1
  • noun
  • Animal killed by a person or other animal
  • verb
  • To cause someone to experience a lot of pain
  • To end the life of a person or other living thing
  • To be very funny
  • To prevent something from continuing or operating
  • To do something unimportant to pass time quickly

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)

trap

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US / træp /

UK / træp /

A2
  • noun
  • Device used for catching animals
  • Vehicle pulled by a single horse
  • Area or hazard on a golf course
  • Someone's mouth
  • Uncomfortable event that is hard to escape
  • verb
  • To use a device to catch animals or people
  • To hold, e.g. a nerve, so that it cannot move
  • To catch or prevent someone from escaping
  • To trick someone
  • To put into a situation you can't escape from

water

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US / 'wɔ:tə(r) /

UK / ˈwɔtɚ, ˈwɑtɚ /

A1
  • noun
  • Clear liquid that forms the seas, rivers and rain
  • Large area such as an ocean or sea
  • verb
  • (Of the eyes) to produce tears
  • (Mouth) to become wet at the thought of nice food
  • To pour liquids onto a plant to keep it alive

decimate

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US / 'desɪmeɪt /

UK / ˈdɛsəˌmet /

C1
  • verb
  • to kill a large number of something, or to reduce something severely

for

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US / fə(r) /

UK / fɔr,fə /

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

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)

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

question

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US / 'kwestʃən /

UK / ˈkwɛstʃən /

A1
  • noun
  • Issue or problems you are dealing with
  • What you ask about; issue
  • verb
  • To ask for or try to get information
  • To have or express concerns or uncertainty

vast

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US / vɑ:st /

UK / væst /

A2
  • adjecitve
  • Being very large in size or amount

canopy

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US / 'kænəpɪ /

UK / ˈkænəpi /

B1
  • noun
  • Structure that hangs over something to shelter it
  • Tops of trees that shade the ground in forests

hour

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US / 'aʊə(r) /

UK / aʊr /

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

possibly

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US / ˈpɒsəbli /

UK / ˈpɑ:səbli /

A1
  • adverb
  • May be true or likely, but is uncertain

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

estimate

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US / 'estɪmət /

UK / ˈɛstəˌmet /

A2
  • noun
  • Guess or calculation of cost, size or value
  • verb
  • To guess or calculate the cost, size or value of

protect

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US / prə'tekt /

UK / prəˈtɛkt /

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

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

process

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US / prə'ses /

UK / ˈprɑsˌɛs, ˈproˌsɛs /

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

resurrection

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US / ˌrezəˈrekʃn /

UK / ˌrɛzəˈrɛkʃən /

C2
  • noun
  • Bringing a dead person/unused thing back to life

pigeon

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US / 'pɪdʒɪn /

UK / ˈpɪdʒən /

B2
  • noun
  • Gray bird that is common in cities

tech

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US / tek /

UK / tɛk /

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

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

via

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US / ˈvaɪə /

UK / ˈvaɪə, ˈviə /

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

before

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US / bɪˈfɔ:(r) /

UK / bɪˈfɔr,-ˈfor /

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

century

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US / 'sentʃərɪ /

UK / ˈsɛntʃəri /

A1
  • noun
  • Period of 100 years

alive

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US / ə'laɪv /

UK / əˈlaɪv /

A2
  • adjecitve
  • Living; not dead

almost

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US / 'ɔ:lməʊst /

UK / ˈɔlˌmost, ɔlˈmost /

A1
  • adverb
  • Only a little less than, nearly, not quite

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

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

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

seep

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US / si:p /

UK / sip /

B2
  • verb
  • To flow slowly through small openings or pores

sunlight

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US / ˈsʌnlaɪt /

UK / ˈsʌnˌlaɪt /

A2
  • noun
  • Rays of light coming from the sun

transfer

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US / træns'fɜ:(r) /

UK / trænsˈfɚ /

A2
  • noun
  • Moving to a different place, job, or school
  • Act of giving the right to a property to another
  • Picture that is pressed to copy it onto something
  • Use of ideas or skills in a different situation
  • Ticket allowing you to get on another plane, bus
  • verb
  • To move to a different place, job or school
  • To give someone an illness through contact
  • To give someone your right to a property
  • To move something from one place to another
  • To use ideas or skills in a different situation
  • To get off a plane, bus etc. and get on another

complete

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US / kəm'pli:t /

UK / kəmˈplit /

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

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

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

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

conversation

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US / ˌkɒnvəˈseɪʃn /

UK / ˌkɑnvɚˈseʃən /

A2
  • noun
  • Talking with other people; discussion or chat

decade

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US / ˈdekeɪd /

UK / ˈdɛkˌed, dɛˈked /

B1
  • noun
  • Period of 10 years

reptile

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US / ˈreptaɪl /

UK / ˈrɛptɪl, -ˌtaɪl /

B1
  • noun
  • Animals such as snakes, lizards

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

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

next

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US / nekst /

UK / nɛkst /

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

rebalance

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US / re'bæləns /

UK / re'bæləns /

C2
  • verb
  • To try to make things equal again

scientist

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US / ˈsaɪəntɪst /

UK / ˈsaɪəntɪst /

A2
  • noun
  • Person who is trained in a science

tundra

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US / ˈtʌndrə /

UK / ˈtʌndrə /

B2
  • noun
  • Flat frozen region that has no trees

magically

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US / 'mædʒɪklɪ /

UK / 'mædʒɪklɪ /

B1
  • adverb
  • In a manner that uses or involves magic

optimistic

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US / ˌɒptɪˈmɪstɪk /

UK / ˌɑːptɪˈmɪstɪk /

B2
  • adjecitve
  • Tending to believe the future will be good

onto

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US / ˈɒntə /

UK / ˈɑnˌtu, -tə, ˈɔn- /

A1
  • preposition
  • Towards a certain direction/into a certain area

negative

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US / 'neɡətɪv /

UK / ˈnɛɡətɪv /

A2
  • adjecitve
  • Being harmful, unwanted or unhelpful
  • In mathematics, being less than zero
  • Focusing on the bad aspects; pessimistic
  • noun
  • The opposite to a positive electrical charge
  • In grammar, containing words such as 'no' or 'not'
  • Reply to a question or statement that means 'no'
  • Image on camera film used to make a photo

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)

exist

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US / ɪɡ'zɪst /

UK / ɪɡˈzɪst /

A1
  • verb
  • To be present, alive or real

explore

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US / ɪk'splɔ:(r) /

UK / ɪkˈsplɔr /

A2
  • verb
  • To examine something in detail to learn about it
  • To travel to a place to discover more about it

engineer

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US / ˌendʒɪ'nɪə(r) /

UK / ˌɛndʒəˈnɪr /

A2
  • noun
  • Someone whose job is designing machines, buildings
  • Someone whose job is to repair or maintain engines

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

ice

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US / aɪs /

UK / aɪs /

A1
  • noun
  • Frozen gas or liquid, esp. water
  • Sweet food made of frozen cream, or juices
  • verb
  • To make something cold by putting on frozen water
  • To spread a sweet and creamy substance on a cake

hawk

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US / hɔ:k /

UK / hɔk /

B2
  • noun
  • Large bird kills smaller birds and animals
  • Someone wanting to go to war using the military
  • verb
  • To remove something from the throat by coughing
  • To sell goods by going from place to place

sample

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US / ˈsɑ:mpl /

UK / ˈsæmpl /

A2
  • noun
  • A small quantity of something used as a taster
  • verb
  • To try (e.g. food, drink), to see if you like it

scene

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US / si:n /

UK / sin /

A2
  • noun
  • Incident where someone behaves angrily, badly
  • View that looks like a picture
  • Place where something particular happened
  • Part of an act in a play

sheep

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US / ʃi:p /

UK / ʃip /

B1
  • noun
  • Animal with a woolly coat raised for meat or wool
  • Person who behaves as others do, without thinking
  • Subtitles section
  • What if I told you that Jurassic Park isn't a total fantasy?
  • That a future where we interact with animals only seen in museums might be possible?
  • Dodo birds, woolly mammoths, Tasmanian tigers?
  • That's the world scientists and researchers are working on as we speak.
  • And not T-Rexes or brontosauruses.
  • I'll get to why scientifically we won't be doing that.
  • Instead, scientists are focusing on species that could reverse some of the damage that humans have done to the biosphere.
  • And there might be enough DNA found in preserved extinct animals in museums all over the world to jumpstart this resurrection.
  • One bird in particular could help regenerate the forests of North America.
  • The passenger pigeon.
  • I'm Sinead Bovell, a futurist, a tech entrepreneur, and your host of Far Out.
  • Today, let's explore the world of de-extinction.
  • The biosphere is the region of Earth that supports life.
  • It includes all land, water, and a thin layer of air above the Earth.
  • For 3.5 billion years, the Earth's biosphere has hosted countless species, each playing a different role in balancing the world around it, and some more than others.
  • Like the five-ton woolly mammoth.
  • Its grazing patterns and how it stomped around the land had an outsized effect on the Eurasian tundras.
  • It helped to grow and protect permafrost in the region, keeping tons of CO2 locked in the ground.
  • And for thousands of years, humans have played an outsized role in the biosphere, mostly a negative one.
  • Since 1970, almost 70% of the wildlife population has died off due to human interference.
  • But what if we could undo some of that damage by restoring ecosystems to the way they existed before humans tipped the scale?
  • What if the woolly mammoth could help rebalance the biosphere again?
  • Through a process called de-extinction, this could be possible.
  • And there are scientists all around the world working to bring this goal to life.
  • Scientists like Dr. George Church, the godfather of genomics, who is leading a team of researchers working on bringing back the woolly mammoth and the Tasmanian tiger.
  • So what does the future look like to Dr. Church?
  • Well, the best way to predict the future is to try to change it.
  • My lab projects tend to have three components.
  • Some kind of basic science, some new technology, and some focus on long-term societal needs.
  • Our main goal is focused on the environment and the endangered species.
  • As a scientist, I might be considered pessimistic and then I stick to the facts.
  • But as a technologist, I'm optimistic that there's no real barrier to testing the hypotheses and changing the future.
  • The species that Dr. Church wants to bring back are called keystone species because of their outsized role in affecting ecosystems.
  • Another keystone species scientists are homing in on?
  • The passenger pigeon.
  • Passenger pigeons were the most populous bird in North America, and possibly the world.
  • Some estimates put the total number of passenger pigeons in the billions.
  • Flocks were known to be a mile wide and 200 miles long.
  • And when they flew overhead, the flock would blot out the sun for hours at a time.
  • But then the 19th century happened.
  • Industrialization, overhunting, human expansion, human interference.
  • And in a few decades, their population plummeted.
  • By 1914, the last surviving passenger pigeon died in captivity.
  • Researchers think the passenger pigeon was instrumental in creating more biodiversity in North American forests because their massive flocks acted almost like natural forest fires.
  • Destructive, but in a good way.
  • They would swarm in like a tornado, stripping trees bare and decimating canopies.
  • But that allowed sunlight to hit the forest's floor and created more diverse plant species to flourish.
  • That canopy disturbance is thought to be the start of a chain reaction that helped forests regenerate and spawn new life from insects to reptiles to deer to hawks.
  • All in all, the passenger pigeon was essential to the health of the vast hardwood forests that dominated pre-colonial America.
  • It was all part of a massive, balanced cycle.
  • So the question becomes, if the passenger pigeon were brought back, would that cycle begin again?
  • That's what scientists are trying to find out.
  • But first, they need to figure out the actual science of de-extinction.
  • To de-extinct a species, you would need a copy of its genetic code, aka its DNA.
  • Normally, DNA has a half-life of around 500 years, meaning after 500 years, half of the DNA of the deceased species will have decayed.
  • But if that DNA was frozen, it can be preserved for a very long time.
  • For example, a 1.2 million-year-old woolly mammoth tooth was found frozen in a Siberian permafrost.
  • And from that tooth, researchers were able to sequence the DNA of mammoths.
  • And if your mind is going to Jurassic Park mosquitoes trapped in amber scene, amber isn't great for preserving DNA.
  • It doesn't actually freeze, it's porous, so bacteria seeps in, and it just breaks things down.
  • Long story short, no velociraptors for now, which I'm okay with.
  • Passenger pigeons went extinct in the 20th century, so scientists have a fairly complete DNA sample for them.
  • The next step is to identify the closest living genetic relative of the extinct species.
  • In this case, it's the bantailed pigeon.
  • Why do we need to do that?
  • Because the truth is, we aren't fully bringing back a species.
  • It's a lot more complicated than that.
  • What people imagine when they think of de-extinction, the first thing that comes to mind is, we are going to have an exact copy of a woolly mammoth, an exact copy of a passenger pigeon.
  • But that is just not possible.
  • This is Dr. Beth Shapiro, a leading voice in the de-extinction quest and the author of How to Clone a Mammoth.
  • What we're really talking about is resurrecting and bringing back extinct traits, extinct behaviors, extinct capacity to fill some sort of ecological niche that might be vacant because of an extinction.
  • We can't bring back a passenger pigeon, but we might be able to take a species that's alive today, like the bantailed pigeon, and modify it in such a way that it can fill at least part of the niche that was once filled by the passenger pigeon.
  • So we can't magically bring back a 200-year-old bird.
  • And honestly, I don't think we would want to.
  • Every organism is more than the sequence of the A's and C's and G's and T's that make up its DNA code, its genome sequence.
  • We are a combination of our DNA and the environments in which we live.
  • And for most extinct species, those environments don't exist anymore.
  • But the bantailed pigeon does exist.
  • In fact, it's thriving.
  • Its DNA isn't too far off from the passenger pigeon, so scientists are working on identifying the key genetic sequences in the bantailed pigeon that they want to change.
  • Can they give it traits from the passenger pigeon and create a hybrid bird, one that carries on the genetic and ecological importance of the passenger pigeon, but can survive in a modern biosphere, like the bantailed pigeon?
  • Can they make a bantailed pigeon?
  • To create hybrid mammals and de-extinct traits from species like the woolly mammoth or the Tasmanian tiger, scientists use a method called somatic cell nuclear transfer.
  • You might know it as cloning.
  • This technology isn't new.
  • In the 90s, scientists cloned a sheep named Dolly using pretty much the same methods.
  • But birds have a very different reproductive physiology than mammals.
  • For the passenger pigeon, genetic engineers have to move upstream and edit the stem cells that will eventually become sperm or egg cells.
  • These cells are called primordial germ cells, or PGCs.
  • Scientists remove these PGCs from a bantailed pigeon, edit parts of the genome to reflect passenger pigeon traits, inject those edited cells back into the bird, and eventually when the bantailed pigeon goes to reproduce,
  • Its offspring will possess the hybrid traits.
  • We know that this will work.
  • There was some work several years ago where scientists injected duck primordial germ cells into a chicken embryo.
  • That chicken, as an adult, was a perfectly normal female chicken, except some of her eggs were duck eggs.
  • When she was fertilized with duck sperm and laid some eggs, they all hatched into perfectly normal ducks.
  • But even if we can pull this off and resurrect the passenger pigeon, should we?
  • This isn't some species killed off via natural selection or natural climate change like an ice age.
  • We killed them off, and now we want to bring them back to help save us and reverse our environmental mistakes.
  • And what if this hybrid pigeon damages delicate ecosystems and pushes other animals onto the There are too many examples where humans have introduced invasive species and altered environments beyond repair.
  • Are we just doing this again?
  • And who gets to decide where the passenger pigeon roosts?
  • How regulated does this process have to be?
  • And when you think about it, by bringing back an extinct species, we are immediately creating a new endangered species that needs protection and resources, resources that could be put towards other conservation efforts.
  • At the same time, our planet is in a dire state, and it's going to take some big solutions to get us on the right track, solutions as big as de-extinction.
  • And if we get it right, the science and the ethics, we could help balance the biosphere closer to what it was before human interference.
  • And that won't just benefit us, but all of the other species on this planet who deserve to have their ecosystems back.
  • I think we should continue to explore the science of de-extinction while also opening up these conversations to the public so we can steward this process as responsibly as possible.
  • And if we get this right, I think the future will be a really great place.
  • What do you think of de-extinction?
  • What animals would you de-extinct?
  • Let us know in the comments below.