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Can a Simple Brick Be the Next Great Battery? | John O'Donnell | TED

Video vocabulary

analyst

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US / ˈænəlɪst /

UK / ˈænəlɪst /

B1
  • noun
  • Someone who is skilled at studying details of data

excellent

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US / ˈeksələnt /

UK / ˈɛksələnt /

A2
  • adjecitve
  • Extremely good

percent

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US / pə'sent /

UK / pɚˈsɛnt /

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

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

store

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US / stɔ:(r) /

UK / stɔr, stor /

A2
  • noun
  • Place where things are kept for future use
  • Place where you can go to buy things
  • verb
  • To put things in a place for later use

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

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

decade

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US / ˈdekeɪd /

UK / ˈdɛkˌed, dɛˈked /

B1
  • noun
  • Period of 10 years

challenge

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US / 'tʃælɪndʒ /

UK / ˈtʃæləndʒ /

A2
  • noun
  • An activity you wish to try that may be hard to do
  • Act of formally inviting someone to compete
  • A question to determine correctness of something
  • verb
  • To formally invite someone to compete at something
  • To question the correctness of something

notice

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US / 'nəʊtɪs /

UK / ˈnotɪs /

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

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

gigawatt

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US / 'dʒaɪgəwɒt /

UK / 'dʒɪgəˌwɒt /

A1
  • noun
  • One billion (10^9) watts of electrical power

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

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

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

salt

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US / sɔ:lt /

UK / sɔlt /

A2
  • adjecitve
  • Being preserved or seasoned with salt
  • noun
  • Natural white crystal used to flavor food
  • verb
  • To add salt to food in order to improve its taste
  • To add salt to ice in order to melt it
  • To preserve food by adding salt

six

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US / sɪks /

UK / sɪks /

A1
  • number
  • 6

away

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US / ə'weɪ /

UK / əˈwe /

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

hundred

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US / 'hʌndrəd /

UK / ˈhʌndrɪd /

A1
  • number
  • 100

model

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US / ˈmɒdl /

UK / ˈmɑ:dl /

A2
  • adjecitve
  • Being an excellent example of
  • noun
  • Person who wears fashion to show it to the public
  • A small scale copy of a full original
  • verb
  • To wear and display clothes at a fashion show
  • To make a small scale copy of a full original

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

unit

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US / ˈju:nɪt /

UK / ˈjunɪt /

B2
  • noun
  • One apartment in a building
  • Group of people, e.g. soldiers, that work together
  • A chapter of a textbook
  • A standard of measurement of something
  • Single item made by a company

lithium

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US / ˈlɪθiəm /

UK / ˈlɪθiəm /

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

low

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US / ləʊ /

UK / lo /

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

blow

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US / bləʊ /

UK / blo /

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

economic

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US / ˌi:kəˈnɒmɪk /

UK / ˌɛkəˈnɑmɪk, ˌikə- /

A2
  • adjecitve
  • Concerning trade, industry, and money

kitchen

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US / ˈkɪtʃɪn /

UK / ˈkɪtʃən /

A2
  • noun
  • Place where food is cooked

presto

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US / ˈprestəʊ /

UK / ˈprestoʊ /

C2
  • exclamation
  • Suddenly; immediately; as if by magic

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

raise

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US / reɪz /

UK / rez /

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

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

counter

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US / 'kaʊntə(r) /

UK / ˈkaʊntɚ /

B1
  • noun
  • A point in a discussion that puts an opposite view
  • A narrow table top for serving/preparing food
  • Person or device that adds the number of things
  • A token or flat piece used in games
  • prefix
  • Being opposite or against something
  • verb
  • To say or do something in opposition or resistance
  • To try to prevent, as by making a different point

emission

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US / iˈmɪʃn /

UK / ɪˈmɪʃən /

B2
  • noun
  • A substance (e.g. gas) released into the air

steel

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US / sti:l /

UK / stil /

A2
  • adjecitve
  • Made of, or partly made of, a strong silvery metal
  • noun
  • Very strong or determined character in a person
  • Very strong metal made of iron, etc.
  • verb
  • To prepare yourself for something difficult

stuff

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US / stʌf /

UK / stʌf /

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

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

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

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

few

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US / fju: /

UK / fju /

A1
  • pronoun
  • Not many, a small number

industrial

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US / ɪnˈdʌstriəl /

UK / ɪnˈdʌstriəl /

A2
  • adjecitve
  • Concerning making things in factories

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

oil

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US / ɔɪl /

UK / ɔɪl /

A2
  • noun
  • A liquid used for frying foods
  • Thick, black liquid in the ground used as fuel
  • verb
  • To add a liquid for frying foods
  • To put liquid in a machine so it will run smoothly

begin

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US / bɪ'ɡɪn /

UK / ˈbeɡɪn /

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

per

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US / pə(r) /

UK / pɚ /

A2
  • preposition
  • In the manner directed or suggested
  • For each; during each

steam

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US / sti:m /

UK / stim /

A2
  • adjecitve
  • (Train, engine) powered by boiling water
  • noun
  • Mist collecting on a surface when wet air cools
  • Source of stamina, strength or energy
  • Mist of water in the air formed when water boils
  • verb
  • To cover a surface with steam, so as to clean it
  • To cook in mist of tiny drops from boiling water
  • To produce or give off a hot gas by boiling liquid
  • To travel or move using steam as a force

warm

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US / wɔ:m /

UK / wɔrm /

A1
  • adjecitve
  • Friendly, sincere and kind to others
  • Being friendly or sincere
  • Slightly hot; not very hot
  • verb
  • To become more friendly or to like something
  • To make something hotter

bore

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US / bɔ:(r) /

UK / bɔr, bor /

A1
  • verb
  • To accept (responsibilities or duties)
  • To give birth to a child; to produce fruit
  • To accept or suffer the weight of difficulties
  • To show (sign of something)
  • To support the weight of something, e.g. a bridge
  • To make a deep hole in the ground with a drill
  • To make someone not interested in something

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

spare

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US / speə(r) /

UK / spɛr /

A2
  • adjecitve
  • Being extra or in reserve
  • noun
  • Extra part; something in reserve for replacements
  • verb
  • To make (money or time) available for
  • To save from being hurt or punished
  • To allow someone not to do something unpleasant

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

crisis

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US / 'kraɪsɪs /

UK / ˈkraɪsɪs /

B1
  • noun
  • Unstable situation of extreme danger or difficulty

producer

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US / prəˈdju:sə(r) /

UK / prəˈdu:sə(r) /

A1
  • noun
  • Company producing or growing a certain product
  • Person who organizes the making of a movie

replace

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US / rɪ'pleɪs /

UK / rɪˈples /

A2
  • verb
  • To use instead of something else
  • To return an item to its original location

scope

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US / skəʊp /

UK / skoʊp /

B1
  • noun
  • Opportunity for action or thought
  • Range of things included or dealt with
  • Instrument that you use to look at things
  • verb
  • to look at especially for the purpose of evaluation —usually used with out

cement

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US / sɪ'ment /

UK / sɪˈmɛnt /

B1
  • noun
  • Building material made from gray powder, water
  • verb
  • To bind or hold together strongly
  • To make something more stable or stronger

news

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US / nju:z /

UK / nu:z /

A1
  • noun
  • Broadcast on radio or TV about recent events
  • Information about recent events

simulation

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US / ˌsɪmjuˈleɪʃn /

UK / ˌsɪmjəˈleʃən /

B1
  • noun
  • A copying method to study the real world

gigaton

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US / 'dʒɪgətʌn /

UK / 'dʒɪgəˌtʌn /

A1
  • noun
  • A unit of explosive force equal to one billion (10⁹) tons of trinitrotoluene (TNT)

infrastructure

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US / 'ɪnfrəstrʌktʃə(r) /

UK / ˈɪnfrəˌstrʌktʃɚ /

B1
  • noun
  • Basic necessary equipment for a country or region

for

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US / fə(r) /

UK / fɔr,fə /

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

spend

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US / spend /

UK / spɛnd /

A2
  • verb
  • To use money to pay for something
  • To use time in order to do something
  • To use up something completely

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

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)

wind

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US / wɪnd /

UK / wɪnd /

A1
  • adjecitve
  • (Musical instruments) that you blow into to play
  • noun
  • A current of air moving approximately horizontally, especially one strong enough to be felt
  • Something that has influence
  • verb
  • If a road, path, or river winds, it follows a route that turns repeatedly in different directions
  • To turn or cause something to turn
  • To twist around something

solid

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US / 'sɒlɪd /

UK / ˈsɑlɪd /

A2
  • adjecitve
  • Being able to be trusted; reliable
  • Substance that is hard or of fixed shape
  • Being well made and expected to last long
  • Having no space or emptiness inside
  • Being made entirely of one material or substance
  • noun
  • Something firm or hard; not gas or liquid

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

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)

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.

clean

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US / kli:n /

UK / klin /

A1
  • adjecitve
  • Not marked in any way; blank
  • Done according to the rules or standards; fair
  • Free from disease or sickness
  • Being free from dirt or marks; washed
  • Behaving well; not breaking any rules; legal
  • adverb
  • Completely; entirely
  • verb
  • To make free from dirt or marks; washed
  • To make neat and orderly e.g. a room
  • To remove the inner parts of an animal

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

only

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US / ˈəunli /

UK / ˈonli /

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

ten

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US / ten /

UK / tɛn /

A1
  • number
  • 10

two

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US / tu: /

UK / tu /

A1
  • number
  • 2

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

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

hope

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US / həʊp /

UK / hop /

A1
  • noun
  • When you wish something will happen; what you wish
  • verb
  • To expect and want something to happen

any

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US / 'enɪ /

UK / ˈɛni /

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

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

evenly

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US / ˈi:vnli /

UK / ˈivənlɪ /

B2
  • adverb
  • Equally; with advantage to both sides
  • In a smooth, level or regular way
  • In a regular, steady, and equally paced manner

fifteen

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US / ˌfɪfˈti:n /

UK / fɪfˈtin /

A1
  • number
  • 15

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

bread

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US / bred /

UK / brɛd /

A1
  • noun
  • Money or earnings
  • Baked food made from flour, used in sandwiches

chocolate

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US / ˈtʃɒklət /

UK / ˈtʃɑ:klət /

A1
  • adjecitve
  • Being made from cocoa beans
  • noun
  • Hard brown candy made from cocoa beans

hundredfold

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US / ˈhʌndrədfəʊld /

UK / ˈhʌndrədˌfoʊld /

A1
  • number
  • 100 times

toaster

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US / ˈtəʊstə(r) /

UK / ˈtoʊstə(r) /

B1
  • noun
  • Electrical appliance for making toast

ton

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US / tʌn /

UK / tʌn /

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

blast

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US / blɑ:st /

UK / blæst /

B1
  • noun
  • Destructive wave of air from an explosion
  • Strong current of wind
  • verb
  • To attack someone with words
  • To destroy something with explosives
  • To make a loud noise on or with something

finally

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US / ˈfaɪnəli /

UK / ˈfaɪnəli /

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

rondo

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US / ˈrɒndəʊ /

UK / ˈrɑ:ndoʊ /

A1
  • noun
  • Musical form that is often the last movement of a sonata

something

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US / ˈsʌmθɪŋ /

UK / ˈsʌmθɪŋ /

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

coal

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US / kəʊl /

UK / kol /

A2
  • noun
  • Dark hard substance from the earth burnt as a fuel

pollution

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US / pəˈlu:ʃn /

UK / pəˈluʃən /

B1
  • noun
  • Dangerous substances released into an environment

radiation

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US / ˌreɪdiˈeɪʃn /

UK / ˌrediˈeʃən /

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

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

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

hot

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US / hɒt /

UK / hɑ:t /

A1
  • adjecitve
  • Angry or excited
  • Being very good at something
  • Having a high temperature
  • Popular and causing a great deal of excitement
  • Attractive in a sexually exciting way
  • (Of food) very spicy
  • Stolen; dangerous to buy or trade in

temperature

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US / ˈtemprətʃə(r) /

UK / ˈtɛmpərəˌtʃʊr,-tʃɚ,ˈtɛmprə- /

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

industry

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US / 'ɪndəstrɪ /

UK / ˈɪndəstri /

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

most

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US / məʊst /

UK / most /

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

large

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US / lɑ:dʒ /

UK / lɑ:rdʒ /

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

stack

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US / stæk /

UK / stæk /

B1
  • noun
  • A large number or amount of something
  • Large tube through which smoke exits a building
  • verb
  • To arrange cards in a certain order, to cheat
  • To put one thing on top of another, e.g. boxes

recipe

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US / 'resəpɪ /

UK / ˈrɛsəˌpi /

B1
  • noun
  • Conditions likely to create a particular result
  • Directions for making a dish, with the ingredients

furnace

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US / ˈfɜ:nɪs /

UK / ˈfɜ:rnɪs /

B2
  • noun
  • Container with hot fire for melting metal, etc.

burn

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US / bɜ:n /

UK / bɚn /

A1
  • noun
  • Damage from fire or heat
  • verb
  • To destroy with fire
  • To feel pain and heat
  • To use as fuel for a fire to make light or heat
  • To overcook food with too much heat it goes black

four

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US / fɔ:(r) /

UK / fɔr, for /

A1
  • number
  • 4

economy

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US / ɪ'kɒnəmɪ /

UK / ɪˈkɑnəmi /

A1
  • noun
  • Using money, resources in a careful, effective way
  • Total of all goods, services and wages in an area

heat

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US / hi:t /

UK / hit /

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

million

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US / ˈmɪljən /

UK / ˈmɪljən /

A1
  • number
  • 1,000,000

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

safe

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US / seɪf /

UK / sef /

A2
  • noun
  • Metal box with a lock to keep valuable things in
  • adjecitve
  • Highly likely
  • Being out of danger

associate

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US / ə'səʊʃɪeɪt /

UK / əˈsoʊʃiˌeɪt /

B1
  • adjecitve
  • Part of a job title indicating a junior position
  • noun
  • Partner in professional work, e.g. in law
  • verb
  • To spend time with other people; mix with
  • To form a connection in your mind between things

combine

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US / kəmˈbaɪn /

UK / kəmˈbaɪn /

A2
  • verb
  • To mix several things together to form one thing

day

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US / deɪ /

UK / de /

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

develop

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US / dɪ'veləp /

UK / dɪˈvɛləp /

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

kiln

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US / /

UK / /

C1
  • noun
  • Type of oven used for baking clay or brick

point

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US / pɔɪnt /

UK / pɔɪnt /

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

valley

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US / 'vælɪ /

UK / ˈvæli /

A2
  • noun
  • Area between mountains with river running through

capture

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US / 'kæptʃə(r) /

UK / ˈkæptʃɚ /

B1
  • verb
  • To attract and hold e.g. interest, attention
  • To record, tape, or film something
  • To catch and prevent from being free
  • To take control of a place or object by force

carbon

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US / 'kɑ:bən /

UK / ˈkɑrbən /

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

electrification

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US / ɪˌlektrɪfɪˈkeɪʃn /

UK / ɪˌlektrɪfɪˈkeɪʃn /

C1
  • noun
  • Act of providing electricity

market

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US / ˈmɑ:kɪt /

UK / ˈmɑ:rkɪt /

A1
  • noun
  • Need or demand for a particular product or service
  • Area or region where a certain product is sold
  • Public event where people sell goods on tables
  • Institution where stocks are bought and sold
  • verb
  • To publicize products to get you to buy; advertise

side

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US / saɪd /

UK / saɪd /

A1
  • adjecitve
  • In addition to the central or most important thing
  • Next to, or very close to, the right or left of
  • noun
  • Position or opinion that is opposite to another
  • Right or left part of a person's body
  • Feature of someone's personality
  • Straight edge of an object
  • One of two or more groups fighting each other
  • verb
  • To decide to agree with one point, not the other

too

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US / tu: /

UK / tu /

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

uncertainty

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US / ʌn'sɜ:tntɪ /

UK / ʌnˈsə:tn:ti /

B2
  • noun
  • Feeling of not really knowing what will happen

available

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US / əˈveɪləbl /

UK / əˈveləbəl /

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

decarbonize

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US / ˌdiːˈkɑːbənaɪz /

UK / ˌdiːˈkɑːrbənaɪz /

A1
  • other
  • Remove carbon from (an engine)

here

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US / hɪə(r) /

UK / hɪr /

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

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

production

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US / prəˈdʌkʃn /

UK / prəˈdʌkʃən, pro- /

A2
  • noun
  • Process of producing or growing food naturally
  • Process of making something on a large scale
  • Process of making a movie or TV show

tesla

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US / 'teslə /

UK / 'teslə /

A1
  • noun
  • Unit of magnetic flux density equal to one weber per square meter

tool

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US / tu:l /

UK / tul /

A2
  • noun
  • Device used to make things, e.g. a hammer
  • verb
  • To provide a workshop with the right equipment

supply

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US / sə'plaɪ /

UK / səˈplaɪ /

A2
  • noun
  • Availability of products and services for use
  • Specific things needed to perform a certain task
  • verb
  • To give or sell goods to others for their use

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

actually

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US / ˈæktʃuəli /

UK / ˈæktʃuəli /

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

storage

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US / ˈstɔ:rɪdʒ /

UK / ˈstɔrɪdʒ, ˈstor- /

A2
  • noun
  • Act of storing something; a depository for goods

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

cook

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US / kʊk /

UK / kʊk /

A1
  • noun
  • A person who prepares food
  • Person's name
  • verb
  • To heat food until it is ready to eat

already

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US / ɔ:lˈredi /

UK / ɔlˈrɛdi /

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

liquid

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US / ˈlɪkwɪd /

UK / ˈlɪkwɪd /

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

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

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

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

fail

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US / feɪl /

UK / fel /

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

alloy

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US / 'ælɔɪ /

UK / ˈælˌɔɪ /

B2
  • noun
  • A metal formed from two or more different metals

delay

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US / dɪˈleɪ /

UK / dɪˈle /

A2
  • noun
  • Action of being late or happening later
  • verb
  • To wait some amount of time before doing something
  • To do something later than is planned or expected
  • To stop something from happening for a time

chamber

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US / 'tʃeɪmbə(r) /

UK / ˈtʃembɚ /

B1
  • noun
  • Enclosed space that contains something
  • Large room that is used for official meetings

terawatt

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US / ˈterəwɒt /

UK / ˈterəwɑ:t /

A1
  • noun
  • A unit of power equal to one trillion (10¹²) watts.

twice

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US / twaɪs /

UK / twaɪs /

A1
  • adverb
  • Two times

calcine

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US / ˈkælsaɪn /

UK / ˈkælsaɪn /

A1
  • noun
  • Heat a substance so that it oxidizes or reduces

fund

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US / fʌnd /

UK / fʌnd /

A2
  • noun
  • Money collected, saved, or provided for a purpose
  • A specific account into which you put money
  • verb
  • To supply money for something

hydrogen

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US / ˈhaɪdrədʒən /

UK / ˈhaɪdrədʒən /

B1
  • noun
  • Lightest of all chemical elements

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

element

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US / 'elɪmənt /

UK / ˈɛləmənt /

A2
  • noun
  • Essential or particular part of something

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

hint

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US / hɪnt /

UK / hɪnt /

A2
  • noun
  • Helpful piece of information
  • Tiny quantity or sign of something
  • verb
  • To suggest without being direct about it

glass

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US / ɡlɑ:s /

UK / ɡlæs /

A1
  • adjecitve
  • Being made of glass
  • noun
  • Clear hard container used for drinking
  • A lens for eyewear
  • Hard see-through material used for making windows

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

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

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

factory

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US / ˈfæktri /

UK / ˈfæktəri /

A2
  • noun
  • Building where things are made

energy

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US / 'enədʒɪ /

UK / ˈɛnədʒi /

A2
  • noun
  • Physical or mental strength

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

checkerboard

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US / ˈtʃekəbɔ:d /

UK / ˈtʃekərbɔ:rd /

A1
  • noun
  • Board having squares of two alternating colors

interesting

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US / ˈɪntrəstɪŋ /

UK / ˈɪntrɪstɪŋ, -tərɪstɪŋ, -təˌrɛstɪŋ /

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

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

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

iron

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US / ˈaɪən /

UK / ˈaɪərn /

B1
  • adjecitve
  • Being very tough, strong, and determined
  • noun
  • Heavy metal device heated to smooth clothes
  • Golf club with a metal head
  • Strong hard metal used to make steel
  • verb
  • To use a hot flat-based machine to smooth clothes

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

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’

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

baby

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US / ˈbeɪbi /

UK / ˈbeɪbi /

A2
  • adjecitve
  • Small in size; smaller than usual
  • noun
  • A very young child, who cannot yet speak
  • verb
  • To treat someone as if they were newly born

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

but

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US / bət /

UK / bʌt,bət /

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

cut

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US / kʌt /

UK / kʌt /

A1
  • noun
  • Act/instance of reducing the size or amount of
  • Small opening made using a sharp object, knife
  • A wound on someone's skin caused by a sharp object
  • verb
  • To reduce the size or amount of something
  • To use knife or scissors to divide, open surfaces

fifty

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US / 'fɪftɪ /

UK / ˈfɪfti /

A1
  • number
  • 50

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

overheat

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US / ˌəʊvəˈhi:t /

UK / ˌoʊvərˈhi:t /

C1
  • verb
  • To become too hot
  • To become too economically active; grow too fast

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

zero

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US / ˈzɪərəʊ /

UK / ˈzɪroʊ /

A1
  • noun
  • Temperature when water turns to ice
  • number
  • Number 0
  • verb
  • To set a scale or other device to show 0

fabric

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US / ˈfæbrɪk /

UK / ˈfæbrɪk /

B1
  • noun
  • Cloth or material
  • Basic structure

ion

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US / 'aɪən /

UK / ˈaɪən /

B2
  • noun
  • Atoms with either a positive or negative charge

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

wire

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US / 'waɪə(r) /

UK / waɪr /

A2
  • noun
  • Thin, flexible thread of metal
  • Thin string of metal used to carry electricity
  • Act of sending a message by telegraph
  • verb
  • To connect two or more things together with cable
  • To send money to someone electronically
  • To send or send word to by telegraph

deployment

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US / dɪ'plɔɪmənt /

UK / dɪˈplɔɪmənt /

B1
  • noun
  • Distribution of forces before battle or work

sense

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US / sens /

UK / sɛns /

A1
  • noun
  • Certain mental feeling or emotion
  • Normal or clear state of mind
  • Meaning of a particular word, phrase or text
  • verb
  • To perceive using sight, sound, taste touch etc.
  • To recognize the presence of something

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

food

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US / fu:d /

UK / fud /

A1
  • noun
  • What people and animals eat to live
  • Things taken in by plants to maintain life
  • A particular style or type of cooking, e.g. Asian

our

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US / 'aʊə(r) /

UK / aʊr /

A1
  • determiner
  • Belonging to us

not

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US / nɒt /

UK / nɑt /

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

seventy

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US / ˈsevnti /

UK / ˈsɛvənti /

A1
  • number
  • 70

box

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US / bɒks /

UK / bɑ:ks /

A1
  • noun
  • A marked area of a baseball field
  • A container with four straight sides and a lid
  • Area of seating in a theater separated from others
  • A 4 sided container or shape printed on a page
  • Entire amount of something inside a container
  • verb
  • To strike someone on the side of the head
  • To pack an object in a six-sided container
  • To fight with gloved hands as a sport

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

avoid

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US / ə'vɔɪd /

UK / əˈvɔɪd /

A2
  • verb
  • To prevent from happening
  • To stay away from

fuel

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US / 'fju:əl /

UK / ˈfjuəl /

A2
  • noun
  • Material used to produce heat or power when burned
  • verb
  • To give power to (a mob, anger, etc.); incite
  • To provide gas or petrol for something

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

dream

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US / dri:m /

UK / drim /

A1
  • noun
  • A wish or hope for something to happen
  • Imagination or image of something you want
  • Images, thoughts, feelings experienced when asleep
  • verb
  • To wish for something to happen
  • To experience thoughts, images while asleep

child

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US / tʃaɪld /

UK / tʃaɪld /

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

insight

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US / 'ɪnsaɪt /

UK / ˈɪnˌsaɪt /

B1
  • noun
  • Power to understand people and things very well
  • Very good understanding of something

opportunity

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US / ˌɒpə'tju:nətɪ /

UK / ˌɑpɚˈtunɪti, -ˈtju- /

A2
  • noun
  • Time, situation when a thing might be done; chance

fossil

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US / 'fɒsl /

UK / ˈfɑsəl /

B1
  • noun
  • Plant or animal that became rock after many years

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.

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

deliver

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US / dɪ'lɪvə(r) /

UK / dɪˈlɪvɚ /

A2
  • verb
  • To give birth to a child; help a woman give birth
  • To save someone from a problem or crisis
  • To keep a promise; do what you say you would
  • To present something to a group, as a speech
  • To take something to a person or place

ramp

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US / ræmp /

UK / ræmp /

B2
  • noun
  • Path that increases in height as you walk up it
  • verb

bring

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US / brɪŋ /

UK / brɪŋ /

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

mill

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US / mɪl /

UK / mɪl /

A2
  • noun
  • Factory for making flour, steel, etc.
  • Kitchen tool used for grinding coffee, pepper etc.
  • verb
  • To make grain into flour with a machine
  • To grind into smaller pieces using a mill

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

spot

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US / spɒt /

UK / spɑt /

A2
  • noun
  • A certain place or area
  • A difficult time; awkward situation
  • Place or ranking on a list
  • A small amount of (substance help hard work etc.)
  • Mark caused by a drop of liquid, food, etc.
  • verb
  • To see someone or something by chance

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

ago

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US / əˈgəʊ /

UK / əˈgoʊ /

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

agree

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US / əˈgri: /

UK / əˈɡri /

A1
  • verb
  • To have the same opinion as someone else

death

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US / deθ /

UK / dɛθ /

A2
  • noun
  • When someone dies; the end of life

design

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US / dɪˈzaɪn /

UK / dɪˈzaɪn /

A1
  • noun
  • The way something is planned, to fulfill a purpose
  • verb
  • To plan in a particular way to fulfill a purpose
  • To think of a plan

dirt

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US / dɜ:t /

UK / dɚt /

A2
  • noun
  • Loose earth or soil

huge

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US / hju:dʒ /

UK / hjudʒ /

A2
  • adjecitve
  • Very very large

their

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US / ðɛː /

UK / ðer /

A1
  • determiner
  • Belonging to them

way

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US / weɪ /

UK / we /

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

yes

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US / jes /

UK / jɛs /

A1
  • adverb
  • Way to say you agree or will do something

all

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US / ɔ:l /

UK / ɔl /

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

drop

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US / drɒp /

UK / drɑp /

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

everyone

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US / ˈevriwʌn /

UK / ˈɛvriˌwʌn /

A1
  • pronoun
  • Every person; everybody

grid

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US / ɡrɪd /

UK / ɡrɪd /

B2
  • noun
  • Electrical network supplying electricity to area
  • Metal structure with bars used to cover a hole
  • Pattern made up of lines and small squares

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”

fast

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US / fɑ:st /

UK / fæst /

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

produce

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US / prə'dju:s /

UK / prəˈdus, -ˈdjus, pro- /

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

strange

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US / streɪndʒ /

UK / strendʒ /

A1
  • adjecitve
  • Unusual or odd; surprising because unexpected

build

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US / bɪld /

UK / bɪld /

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

heavy

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US / 'hevɪ /

UK / ˈhɛvi /

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

old

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US / əʊld /

UK / old /

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

work

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US / wɜ:k /

UK / wɚk /

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

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

thank

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US / θæŋk /

UK / θæŋk /

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

red

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US / red /

UK / rɛd /

A1
  • adjecitve
  • Being the color of blood

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

rapid

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US / ˈræpɪd /

UK / ˈræpɪd /

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

between

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US / bɪˈtwi:n /

UK / bɪˈtwin /

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

dollar

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US / ˈdɒlə(r) /

UK / ˈdɑ:lə(r) /

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

everything

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US / 'evrɪθɪŋ /

UK / ˈɛvriˌθɪŋ /

A1
  • pronoun
  • All of the things mentioned

stove

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US / stəuv /

UK / stov /

B1
  • noun
  • Device that burns fuel for heating or cooking

they

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US / ðeɪ /

UK / ðe /

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

tackle

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US / 'tækl /

UK / ˈtækəl /

B1
  • noun
  • Equipment used in fishing
  • Arrangement of ropes and wheels used for lifting
  • Attempt to force a person to the ground
  • verb
  • To start working on a difficult problem
  • To grab and throw a person to the ground

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

absorb

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US / əb'sɔ:b /

UK / əbˈsɔrb, -ˈzɔrb /

B1
  • verb
  • To take up all attention / energy of something
  • To take in a liquid; soak up

ongoing

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US / ˈɒngəʊɪŋ /

UK / ˈɑ:ngoʊɪŋ /

B1
  • adjecitve
  • Continuing to exist or be in progress

simple

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US / 'sɪmpl /

UK / ˈsɪmpəl /

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

show

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US / ʃəʊ /

UK / ʃo /

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

solar

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US / 'səʊlə(r) /

UK / ˈsolɚ /

B1
  • adjecitve
  • Concerning the sun, or its heat

volume

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US / ˈvɒlju:m /

UK / ˈvɑljum, -jəm /

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

crack

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US / kræk /

UK / kræk /

B1
  • noun
  • Attempt to achieve a goal or objective
  • Unexpected and hard hit to the body
  • Joke or impolite comment about something
  • Sound that is short, unexpected and loud
  • Small gap between two things or parts of things
  • verb
  • To attempt to achieve a goal or objective
  • To hit someone or something hard and unexpectedly
  • To tell (a joke)
  • To solve a challenging problem or mystery
  • To make a sound that is short, unexpected and loud
  • To lose control, e.g. under pressure; break down
  • To break so lines appear, but it is not in pieces

efficient

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US / ɪˈfɪʃnt /

UK / ɪˈfɪʃənt /

A2
  • adjecitve
  • Able to produce results without waste

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

run

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US / rʌn /

UK / rʌn /

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

safely

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US / ˈseɪfli /

UK / ˈseflɪ /

A1
  • adverb
  • Out of danger

shine

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US / ʃaɪn /

UK / ʃaɪn /

A2
  • noun
  • Act of using a polish to clean shoes
  • verb
  • To point a light in a certain direction
  • To make something clean by using a polish
  • To make or produce a bright light

climate

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US / ˈklaɪmət /

UK / ˈklaɪmɪt /

A2
  • noun
  • Typical weather conditions in a particular place

colleague

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US / 'kɒli:ɡ /

UK / ˈkɑlˌiɡ /

A2
  • noun
  • Person you work or cooperate with

also

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US / 'ɔ:lsəʊ /

UK / ˈɔlso /

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

cheap

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US / tʃi:p /

UK / tʃip /

A1
  • adjecitve
  • Not costing a lot of money
  • Having a low quality or value
  • Not liking to spend money; mean; stingy

chromium

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US / ˈkrəʊmiəm /

UK / ˈkroʊmiəm /

C1
  • noun
  • Silvery metal element

five

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US / faɪv /

UK / faɪv /

A1
  • number
  • 5

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

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

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)

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

big

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US / bɪɡ /

UK / bɪɡ /

A1
  • adjecitve
  • Popular
  • Serious
  • Large

electricity

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US / ɪˌlekˈtrɪsəti /

UK / ɪlɛkˈtrɪsɪti,ˌilɛk- /

A2
  • noun
  • Energy generated positive and negative charges

investment

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US / ɪnˈvestmənt /

UK / ɪnˈvɛstmənt /

A2
  • noun
  • Something purchased hoping its value will increase
  • Act of giving time, energy to see a future reward

little

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US / 'lɪtl /

UK / ˈlɪtl /

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

material

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US / məˈtɪəriəl /

UK / məˈtɪriəl /

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

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

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

may

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US / meɪ /

UK / me /

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

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

certainty

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US / ˈsɜ:tnti /

UK / ˈsɜ:rtnti /

A2
  • noun
  • Feeling that you really know something; being sure

three

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US / θri: /

UK / θri /

A1
  • number
  • Number 3

deep

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US / di:p /

UK / dip /

A1
  • adjecitve
  • Complex and important
  • Extreme or intense
  • Going far down from the surface
  • Low in pitch, as a sound
  • adverb
  • At a certain distance beneath the surface

chemical

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US / ˈkemɪkl /

UK / ˈkɛmɪkəl /

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

effective

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US / ɪˈfektɪv /

UK / ɪˈfɛktɪv /

A1
  • adjecitve
  • Working efficiently to produce a desired result

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;

inefficient

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US / ˌɪnɪˈfɪʃnt /

UK / ˌɪnɪˈfɪʃənt /

B1
  • adjecitve
  • Unable to act in a way that saves resources

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

giant

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US / 'dʒaɪənt /

UK / ˈdʒaɪənt /

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

less

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US / les /

UK / lɛs /

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

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

capital

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US / 'kæpɪtl /

UK / ˈkæpɪtl /

A2
  • adjecitve
  • Main, or major
  • noun
  • Writing the first letter of a word in big letters
  • Official main city of a country, province or state
  • Collective name for money, shares, and assets
  • Money that is used for a business

into

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US / 'ɪntə /

UK / ˈɪntu /

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

invent

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US / ɪnˈvent /

UK / ɪnˈvɛnt /

A2
  • verb
  • To create something such as a story or excuse
  • To create something useful for the first time

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

open

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US / 'əʊpən /

UK / ˈopən /

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

than

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US / ðən /

UK / ðən /

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

power

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US / 'paʊə(r) /

UK / ˈpaʊɚ /

A1
  • noun
  • Legal or official right to perform certain actions
  • Ability to move forcefully and quickly
  • Energy of something (e.g. electricity or fuel)
  • Mathematical way to multiply a number
  • Condition of being in political control
  • Physical force, energy, and strength
  • verb
  • To give energy to something, e.g. by electricity
  • To move something forcefully and quickly
  • Subtitles section
  • I get a deep sense of hope when I look at this brick.
  • It's going to spend the next fifty years of its life cutting CO₂, and bricks like it are going to cut fifteen percent of world CO₂.
  • So let's talk about that.
  • But first, we have to talk about fire.
  • Fire warms us, heats our homes, cooks our food.
  • We also use fire to make almost everything.
  • Industrial production, making stuff, uses more fossil fuel than any other part of the world economy.
  • We burn coal, oil and gas to make steel, calcine, cement, cook baby food, make glass, make fabric, everything.
  • We don't notice it in our daily lives, but industrial energy use is the largest part of the total world economy, and industrial heat is a quarter of world fossil fuel use and world carbon emissions.
  • Let me say that again, industrial heat is a quarter of world carbon pollution.
  • We need the stuff we make
  • We need to decarbonize our industry, not deindustrialize.
  • How?
  • If we had a new kind of fire, we could decarbonize today and avoid the time and costs associated with replacing our factories that run on heat.
  • If we had clean heat,
  • we could have the stuff that we use, and we could have a giant drop in world emissions.
  • But for decades, we've dreamed of burning hydrogen or capturing carbon to get clean heat, but costs and challenges continue to delay their deployment.
  • The good news is, today, there is a faster, cheaper way of doing it.
  • Electrification.
  • Analysts now say that electrified industrial heat is the next trillion dollar market.
  • I agree, they're right, because the ongoing cost dropping in wind and solar, power costs now are dropping to the point that wind and solar cost less than the fuels our factories burn.
  • So we have the economic conditions to drive to scale.
  • We also have the capacity to build at scale.
  • Today, we have everything we need to build wind and solar at scale to repower industrial heat.
  • Yes, it's terawatts, it's five times more wind and solar than is in the world today.
  • But there is a solution.
  • We have everything we need except continuity.
  • Right?
  • The wind blows and the sun shines only some of the time.
  • Heavy industry needs heat all the time.
  • So we need to store energy some of the time so we can have clean heat all the time.
  • How?
  • Most ways of storing electricity are too expensive or inefficient to use for industrial heat.
  • But what if we just stored heat?
  • Storing electricity as heat can be simple and really low cost.
  • Teams around the world are now trying to build industrial heat batteries that store energy this way.
  • using new materials like liquid salts, liquid metals and solid carbon.
  • And some of these are going to work.
  • They'll take time, time to learn if they're safe, time to learn how long they last, time to learn how to make a lot of something new.
  • My colleagues at RONDO found a way to save time, to go faster, by using old materials that the world already makes in volume.
  • What were they?
  • Here's a hint.
  • One of them was brick.
  • The other was iron wire.
  • Why brick?
  • Two hundred years ago, the steel industry introduced a coal saving technology.
  • They started building blast stoves that store heat at thousands of degrees in thousands of tons of brick.
  • Brick is basically made from dirt, and dirt is available at scale.
  • When it's red hot, a brick stores as much energy as a lithium ion battery per pound, costs ten times less, lasts ten times longer.
  • Half a million tons of brick are storing heat at steel mills around the world right now.
  • Iron wire, a hundred years ago, a new alloy for heating elements from toasters to industrial furnaces was invented.
  • It is made only of iron with a little chromium and aluminum.
  • Today that heating element is on your kitchen counter and in industrial furnaces and kilns around the world.
  • Combining brick and wire could be really cost effective.
  • We would know how to make a lot of it right away, but there are some challenges.
  • If you overheat a brick on one side, if you don't heat it evenly, it can crack.
  • If you overheat just one spot on a wire, the wire may fail.
  • We finally found the way to do it.
  • The way to combine these was to heat brick the way your toaster heats bread, the way the sun heats the earth, with radiant heat.
  • It only took us seventy four design revisions to find the solution and hundreds of simulations.
  • But the key insight, heating brick with radiation,
  • We built a three D checkerboard of brick and open chambers.
  • The chambers let radiant heat spread the heat evenly.
  • So electricity can heat thousands of tons of brick to thousands of degrees safely and evenly.
  • Once you've done that, now you have stored energy, and delivering clean heat is really simple.
  • Push air into the brick stack, superheated air comes out that powers your kiln or your furnace, or heats a boiler to make steam for your chemical plant or your food production facility.
  • Presto, you have a heat battery, an industrial boiler that runs all day, all night, all year on the wind or the sun, a cement kiln that burns no fuel, a chocolate factory with zero scope one and scope two emissions.
  • Simple, low cost and efficient.
  • I brought this brick for show and tell.
  • It's going to spend the next fifty years of its life in a heat battery, running at thousands of degrees over a thousand C. When it's at temperature, it stores more energy than a Tesla Model X. We put about three thousand of those in a box to make one heat battery.
  • We didn't have spares.
  • This is actually going to a unit.
  • We are now at this very interesting point.
  • Technology like this is simple.
  • It's boring.
  • It can go to scale fast.
  • If you want to go to scale fast, it's good to be boring, to use these simple processes.
  • There is a valley of death that everyone talks about, about new technologies between
  • New technologies where high capital costs can absorb uncertainty and low capital costs huge infrastructure need certainty.
  • New and boring is a really strange combination, but it's an excellent recipe for going fast.
  • Leading climate investment funds, industrial producers agreed that our kind of boring
  • is a good idea and have helped us build a great team to build big and go fast.
  • Today, RONDO is supplying heat for low carbon fuel production and developing projects around the world that will produce food, chemicals, metals and cement.
  • We are producing bricks at gigawatt scale and growing that production over the next few years a hundredfold.
  • So we're at the beginning of a rapid ramp.
  • Tackling our climate crisis needs our will, but it also needs tools to build big, new energy infrastructure fast.
  • This is one of those tools.
  • It's a six gigaton tool.
  • Analysts say the fully decarbonized world needs twice as much heat battery storage as grid battery storage.
  • Heat batteries powered by the wind and sun will lower, not raise, the cost of making the things we need in the decarbonized world.
  • This new kind of fire will power a safer, more prosperous, more just world for our children and their children.
  • Our challenge, Rondo's great opportunity, is to build at scale to repower the world's industry.
  • and save fifteen percent of world's CO₂ emissions.
  • And with your help, we can get that done in fifteen years.
  • That's why I have hope, and I hope you do too.
  • Thank you.