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Diesel VS. Gasoline - THIS Is The Most Effective Fuel For Trucks!

Video vocabulary

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

within

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US / wɪˈðɪn /

UK / wɪðˈɪn, wɪθ- /

A1
  • adverb
  • Inside the limits of an area, time or range
  • preposition
  • From the inside of something

adoption

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US / ə'dɒpʃn /

UK / ə'dɑ:pʃn /

A2
  • noun
  • Act of accepting and starting a new practice

amount

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US / ə'maʊnt /

UK / əˈmaʊnt /

A1
  • noun
  • Quantity of something
  • verb
  • To add up to a certain figure

enthusiast

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US / ɪnˈθju:ziæst /

UK / ɪnˈθu:ziæst /

B1
  • noun
  • A person having a strong liking for something

head

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US / hed /

UK / hɛd /

A1
  • noun
  • Counter for the number of cattle
  • Natural mental ability or intelligence
  • Leader or person with the greatest authority
  • Mind; mental ability; mental state
  • Side of a coin with a head on it
  • Top part of your body with eyes and a mouth
  • Starting point of something, e.g. a river
  • verb
  • To hit a ball with your head in a game
  • To be first or at the front or top (e.g. a list)
  • To travel or move toward a particular place; To go in a particular direction
  • To become the leader of something
  • To lead or be responsible for something

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

operation

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US / ˌɒpəˈreɪʃn /

UK / ˌɑpəˈreʃən /

A2
  • noun
  • Business or company, or its activities
  • Functioning; use
  • Medical procedure involving surgery

economical

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US / ˌi:kəˈnɒmɪkl /

UK / ˌɛkəˈnɑmɪkəl, ˌikə- /

A2
  • adjecitve
  • Careful in how you use money or resources
  • Without spending a large amount of time or money

efficiently

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US / ɪ'fɪʃntlɪ /

UK / ɪˈfɪʃəntlɪ /

A2
  • adverb
  • In a way that does not create waste

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

standard

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US / 'stændəd /

UK / ˈstændəd /

A2
  • adjecitve
  • Being the accepted normal level of quality
  • (Of a language) being the most accepted in a place
  • noun
  • Official unit of measuring something
  • Principle of behaving in a moral way

strong

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US / strɒŋ /

UK / strɔŋ /

A1
  • adjecitve
  • (Of tea or beer) dark or thick
  • Having big muscles; physically powerful

system

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US / 'sɪstəm /

UK / ˈsɪstəm /

A1
  • adjecitve
  • Working in an organized, logical way
  • noun
  • Set of organized, planned ideas that work together

vehicle

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US / ˈvi:əkl /

UK / ˈvi:hɪkl /

A2
  • noun
  • Machine (such as a car) used to carry things
  • Means of expressing, showing, or achieving

control

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US / kən'trəʊl /

UK / kənˈtrol /

A1
  • noun
  • A device designed to operate a machine
  • Participant in experiment that is left untouched
  • Act to dominate or command; make manageable
  • A law limiting the growth or spread of something
  • A place which overseas or manages e.g. a factory
  • verb
  • To direct or influence the behavior of something

emission

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US / iˈmɪʃn /

UK / ɪˈmɪʃən /

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

eighty

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US / 'eɪtɪ /

UK / ˈeti /

A1
  • number
  • 80

light

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US / laɪt /

UK / laɪt /

A1
  • adjecitve
  • Being bright making it easy to see; not dark
  • Being pale and lacking darkness of color
  • Not heavy; weighing only a little
  • adverb
  • Carrying few bags when traveling
  • noun
  • A source of energy that makes a room or area bright
  • Way in which something or someone is understood
  • verb
  • To cause something to burn; put a burning match to
  • To provide a way to see ahead

math

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US / mæθ /

UK / mæθ /

A2
  • noun
  • Study or science of numbers and shapes

molecule

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US / ˈmɒlɪkju:l /

UK / ˈmɑlɪˌkjul /

B2
  • noun
  • Two or more atoms chemically combined

nitrogen

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US / ˈnaɪtrədʒən /

UK / ˈnaɪtrədʒən /

B2
  • noun
  • A colorless chemical element without a smell

pace

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US / peɪs /

UK / pes /

A2
  • noun
  • Rate of speed at which something moves or happens
  • Single step, often used to measure a distance
  • verb
  • To set and control your speed, as in a race
  • To walk with slow purposeful steps

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

consume

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US / kən'sju:m /

UK / kənˈsum /

A2
  • verb
  • To eat, drink, buy or use up something
  • To take all your energy; focus the attention

depend

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US / dɪˈpend /

UK / dɪˈpend /

B1
  • verb
  • Be controlled or determined by (someone/something)

durability

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US / ˌdjʊərə'bɪlətɪ /

UK / ˌdjʊrəˈbɪlətɪ /

B2
  • noun
  • Product made to withstand repeated use

driver

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US / ˈdraɪvə(r) /

UK / ˈdraɪvɚ /

A1
  • noun
  • People who move cattle from one place to another
  • Someone who operates a vehicle
  • A club with a wooden head used when playing golf

generate

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US / ˈdʒenəreɪt /

UK / ˈdʒɛnəˌret /

A2
  • verb
  • To create or be produced or bring into existence
  • To create electricity, heat, energy and power

vast

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US / vɑ:st /

UK / væst /

A2
  • adjecitve
  • Being very large in size or amount

manufacture

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US / ˌmænjʊ'fæktʃə(r) /

UK / ˌmænjəˈfæktʃɚ /

A2
  • verb
  • To produce large numbers of products in a factory
  • To create a story or explanation that is not true

limit

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US / 'lɪmɪt /

UK / ˈlɪmɪt /

A2
  • noun
  • Point beyond which it is not possible to go
  • verb
  • To stop or prevent an increase past a point

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

gasoline

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US / ˈgæsəli:n /

UK / ˈɡæsəˌlin, ˌɡæsəˈlin /

B2
  • noun
  • Liquid we put in cars to make them run

stringent

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US / 'strɪndʒənt /

UK / ˈstrɪndʒənt /

C2
  • adjecitve
  • Strict or severe, as regards standards or rules

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)

overall

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US / ˌəʊvər'ɔ:l /

UK / ˈovɚˌrɔl /

A2
  • adjecitve
  • Viewed as a whole; in general, not as details

per

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US / pə(r) /

UK / pɚ /

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

eight

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US / eɪt /

UK / et /

A1
  • number
  • 8

climb

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US / klaɪm /

UK / klaɪm /

A1
  • noun
  • A trip up something, e.g. a mountain
  • Increase or a rise toward a higher price or point
  • verb
  • To rise gradually and steadily to a higher point
  • To increase or rise toward a higher price or point

charge

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US / tʃɑ:dʒ /

UK / tʃɑrdʒ /

A2
  • noun
  • An attack by running quickly toward someone
  • A price for a service or goods
  • When a battery has a certain amount of electricity
  • Amount of money you pay for a service
  • verb
  • To run quickly toward someone to attack them
  • To ask for money as a price for a service or goods
  • To put electricity in a battery
  • To give responsibility to take care of or manage
  • To state that someone has committed a crime

versatile

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US / ˈvə:sətail /

UK / ˈvɚsətəl, -ˌtaɪl /

B2
  • adjecitve
  • Having many uses or skills

towards

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US / tə'wɔ:dz /

UK / 'təuədz, twɔ:dz /

A1
  • preposition
  • In the direction of someone or something

hydrocarbon

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US / ˌhaɪdrəˈkɑ:bən /

UK / ˌhaɪdrəˈkɑ:rbən /

C2
  • noun
  • Organic compound consisting of hydrogen and carbon

gallon

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US / ˈgælən /

UK / ˈɡælən /

B1
  • noun
  • Unit of liquid equal to 4 US quarts (3.785 liters)

emphasis

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US / ˈemfəsɪs /

UK / ˈɛmfəsɪs /

A2
  • noun
  • Special attention, importance, or force
  • Stress placed on part of a word or phrase

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

subscribe

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US / səb'skraɪb /

UK / səbˈskraɪb /

B1
  • verb
  • To regularly pay to receive a service

same

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US / seɪm /

UK / sem /

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

historically

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US / hɪ'stɒrɪklɪ /

UK / hɪsˈtɔrɪkl:ɪ /

B1
  • adverb
  • In history; in the past

ignition

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US / ɪɡ'nɪʃn /

UK / ɪɡˈnɪʃən /

B2
  • noun
  • Process of making catch fire (e.g. an engine)

insight

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US / 'ɪnsaɪt /

UK / ˈɪnˌsaɪt /

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

withstand

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US / wɪðˈstænd /

UK / wɪθˈstænd, wɪð- /

B1
  • verb
  • To remain unaffected by something or someone

video

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US / 'vɪdɪəʊ /

UK / ˈvɪdiˌo /

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

transportation

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US / ˌtrænspɔ:ˈteɪʃn /

UK / ˌtrænspɔ:rˈteɪʃn /

B1
  • noun
  • Act of moving people or goods between places

significant

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US / sɪgˈnɪfɪkənt /

UK / sɪɡˈnɪfɪkənt /

A2
  • adjecitve
  • Large enough to be noticed or have an effect
  • Having meaning; important; noticeable
  • (Statistics) being clearly different

hybrid

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US / ˈhaɪbrɪd /

UK / ˈhaɪbrɪd /

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

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

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

single

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US / 'sɪŋɡl /

UK / ˈsɪŋɡəl /

A1
  • adjecitve
  • Being one only, without others
  • Only; merely
  • Not married or in a relationship
  • noun
  • One run in cricket or a hit baseball
  • An individual song from a CD or album
  • Person who is not married or in a relationship

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

generally

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US / /

UK / /

A2
  • adverb
  • Usually; as a rule; by, to or for most people

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

fellow

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US / 'feləʊ /

UK / ˈfɛlo /

A2
  • adjecitve
  • Being of the same kind
  • noun
  • Man or a boy
  • Student paid to study and teach after college

especially

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US / ɪˈspeʃəli /

UK / ɛˈspɛʃəli, ɪˈspɛʃ- /

A1
  • adverb
  • More than usual; extremely

but

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US / bət /

UK / bʌt,bət /

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

compression

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US / kəm'preʃn /

UK / kəmˈprɛʃən /

B2
  • noun
  • Act of reducing something in time, size, quantity

upfront

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US / ˌʌpˈfrʌnt /

UK / ˈʌpˈfrʌnt /

A1
  • adverb
  • Frank and honest

substantial

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US / səbˈstænʃl /

UK / səbˈstænʃəl /

C2
  • adjecitve
  • (Of a meal) able to satisfy your hunger; filling
  • Being large in degree, quantity, or size
  • Being strongly and firmly made or built

operate

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US / ˈɒpəreɪt /

UK / ˈɑ:pəreɪt /

A1
  • verb
  • To control or handle something, such as a machine
  • To control or manage something such as a business
  • To be working or being used
  • To perform surgery on someone

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

limitation

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US / ˌlɪmɪˈteɪʃn /

UK / ˌlɪmɪˈteʃən /

B1
  • noun
  • Act of controlling or reducing the size of

frequent

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US / ˈfri:kwənt /

UK / ˈfrikwənt /

A2
  • adjecitve
  • Happening often
  • verb
  • To go to a place regularly

against

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US / əˈgenst /

UK / əˈɡenst /

A1
  • preposition
  • In physical contact with, as for support; next to
  • In opposition to; disagreeing with

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

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

please

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US / pli:z /

UK / pliz /

A1
  • adverb
  • Used when you politely ask people for things
  • verb
  • To entertain someone, by dancing, singing etc.
  • To make someone happy by doing something

necessary

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US / 'nesəsərɪ /

UK / ˈnɛsɪˌsɛri /

A1
  • adjecitve
  • Needed or required; unavoidable

favour

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US / ˈfeɪvə(r) /

UK / ˈfevɚ /

A2
  • noun
  • What someone asks of you; helpful act; a kindness
  • verb
  • To prefer or promote over another

compare

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US / kəm'peə(r) /

UK / kəmˈpɛr /

A1
  • verb
  • To consider how similar and different things are

twist

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US / twɪst /

UK / twɪst /

A2
  • noun
  • Turn or spiral curve in a path or road
  • Bend or sudden change of direction
  • An unexpected change in the direction of a story
  • a change in the way in which something happens
  • verb
  • To turn something in a circular direction
  • To turn in a curving direction e.g. road or path
  • To bend something into a particular shape
  • To change the meaning in an unintended way
  • To turn in opposite directions at the same time
  • To wind something around something else
  • To turn direction or position, as of your body

seventy

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US / ˈsevnti /

UK / ˈsɛvənti /

A1
  • number
  • 70

semi

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US / ˈsemi /

UK / ˈsɛmaɪ, ˈsɛmi /

B1
  • noun
  • House that shares a wall with another house
  • prefix
  • A prefix meaning 'half'

powerful

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US / ˈpauəful /

UK / ˈpaʊəfəl /

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

output

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US / 'aʊtpʊt /

UK / ˈaʊtˌpʊt /

A2
  • noun
  • Amount of something that is produced
  • verb
  • To produce data or information, as a computer

not

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US / nɒt /

UK / nɑt /

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

development

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US / dɪ'veləpmənt /

UK / dɪˈvɛləpmənt /

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

whether

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US / ˈweðə(r) /

UK / ˈhwɛðɚ, ˈwɛð- /

A1
  • conjunction
  • If something will happen or not

runner

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US / 'rʌnə(r) /

UK / ˈrʌnɚ /

A1
  • noun
  • Person whose job it is to deliver messages
  • A rail on which a drawer or curtain slides
  • Person who runs for exercise or for a sport

than

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US / ðən /

UK / ðən /

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

turn

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US / tɜ:n /

UK / tɚn /

A1
  • noun
  • Place where changing of direction happens
  • Your time or chance to perform a duty
  • Your chance to play or do in say a game
  • Unexpected change, as in the weather
  • verb
  • To become (a particular age)
  • To become a different quality, color, etc.
  • To change the direction of something, e.g. a car
  • To move in an opposite direction or position
  • To shape metal with a spinning tool

stressful

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US / ˈstresfl /

UK / ˈstrɛsfəl /

A2
  • adjecitve
  • Worrying; causing tension

stress

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US / stres /

UK / strɛs /

A2
  • noun
  • Emphasis on part of a word or sentence
  • Pressure on something or someone
  • A state of mental tension, worry due to problems
  • verb
  • To emphasize one or more parts of a word, sentence
  • To put pressure on something or someone
  • To say your opinion strongly
  • To be in a state of mental tension due to problems

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

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

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

lifespan

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US / ˈlaɪfspæn /

UK / ˈlaɪfspæn /

B2
  • noun
  • Length of time something is expected to last

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

extract

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US / 'ekstrækt /

UK / ɪkˈstrækt /

B1
  • noun
  • Essential ingredient of a natural thing
  • Part taken from a longer written work
  • verb
  • To get a substance out of a plant, etc.
  • To get a person to share secret information
  • To remove something by pulling or cutting

combustion

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US / kəmˈbʌstʃən /

UK / kəmˈbʌstʃən /

B2
  • noun
  • An act or instance of burning

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

marathon

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US / 'mærəθən /

UK / 'mærəθɑ:n /

B2
  • adjecitve
  • Lasting for a long time
  • noun
  • Running race that is run over a distance of 42km

hill

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US / hɪl /

UK / hɪl /

A2
  • noun
  • High land not as high as a mountain
  • Where the road or land goes upward; slope
  • Person's name

maintenance

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US / 'meɪntənəns /

UK / ˈmentənəns /

A2
  • noun
  • Keeping (a machine) working by checking and fixing

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

captivate

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US / 'kæptɪveɪt /

UK / ˈkæptəˌvet /

C2
  • verb
  • To catch and hold someone's interest; charm

sturdy

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US / ˈstɜ:di /

UK / ˈstɜ:rdi /

C2
  • adjecitve
  • Substantially made or built; strong

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

level

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US / 'levl /

UK / ˈlɛvəl /

A2
  • adjecitve
  • (Sports) equal to another
  • Being steady and determined (e.g. a voice)
  • noun
  • Specific height of something
  • Amount of ability you have compared to others
  • Floor or deck within a building
  • Tool used to determine if something is lying flat
  • verb
  • To aim a gun at someone
  • To destroy a building; flatten an area completely
  • To make things flat or even
  • To make a score equal to another, in sports

effective

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US / ɪˈfektɪv /

UK / ɪˈfɛktɪv /

A1
  • adjecitve
  • Working efficiently to produce a desired result

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

safely

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US / ˈseɪfli /

UK / ˈseflɪ /

A1
  • adverb
  • Out of danger

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

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

efficient

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US / ɪˈfɪʃnt /

UK / ɪˈfɪʃənt /

A2
  • adjecitve
  • Able to produce results without waste

demand

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US / dɪ'mɑ:nd /

UK / dɪˈmænd /

A2
  • noun
  • Desire customers have to buy product, service
  • A strong request for someone to do something
  • verb
  • To strongly request someone to do something

average

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US / 'ævərɪdʒ /

UK / ˈævərɪdʒ, ˈævrɪdʒ /

A2
  • adjecitve
  • Typical or normal; usual; ordinary
  • noun
  • Total of numbers divided by the number of items
  • verb
  • To add numbers then divide by the number of items

you

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US / jʊ /

UK / ju /

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

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

therefore

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US / ˈðeəfɔ:(r) /

UK / ˈðerfɔ:(r) /

A1
  • adverb
  • And so; for that reason

responsibly

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US / rɪˈspɒnsəbli /

UK / rɪˈspɑ:nsəbli /

A1
  • adverb
  • In a responsible way; sensibly

five

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US / faɪv /

UK / faɪv /

A1
  • number
  • 5

critical

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US / ˈkrɪtɪkl /

UK / ˈkrɪtɪkəl /

A2
  • adjecitve
  • Making a negative judgment of something
  • Being important or serious; vital; dangerous
  • Most important part

alternative

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US / ɔ:lˈtɜ:nətɪv /

UK / ɔlˈtɚnətɪv, æl- /

A2
  • adjecitve
  • A different choice
  • noun
  • Something different you can choose

also

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US / 'ɔ:lsəʊ /

UK / ˈɔlso /

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

transport

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US / ˈtrænspɔ:t /

UK / ˈtrænspɔ:rt /

A2
  • noun
  • Very strong uncontrollable emotion, e.g. delight
  • Vehicle used to take soldiers to other places
  • verb
  • To carry things from one place to another
  • To cause to feel you are in a previous time

intense

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US / ɪn'tens /

UK / ɪnˈtɛns /

A2
  • adjecitve
  • Very strong, great or extreme in degree

inherent

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US / ɪnˈhɪərənt /

UK / ɪnˈhɪrənt /

B1
  • adjecitve
  • Existing as an essential part of

able

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US / 'eɪbl /

UK / ˈebəl /

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

advance

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US / əd'vɑ:ns /

UK / ædˈvæns /

A2
  • noun
  • Forward movement by an army
  • An attempt to seduce someone
  • verb
  • (Of an army) to move forward
  • To change or improve
  • To increase in price or value
  • To move forward in a certain direction
  • To try to seduce someone

truck

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US / trʌk /

UK / trʌk /

A2
  • noun
  • Homegrown vegetables and fruit for sale
  • Large vehicle suitable for transporting things
  • Simple frame with wheels for moving things; cart
  • verb
  • To transport something on a lorry, van

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

oxide

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US / ˈɒksaɪd /

UK / ˈɑ:ksaɪd /

B2
  • noun
  • Compound from combining oxygen with a chemical

incentive

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US / ɪnˈsentɪv /

UK / ɪnˈsɛntɪv /

B1
  • noun
  • Something that encourages you to do something

filter

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US / 'fɪltə(r) /

UK / ˈfɪltɚ /

B1
  • noun
  • Device to remove certain types of light, sound
  • Device to remove unwanted things from liquid, gas
  • verb
  • To remove certain types of light, sound
  • To remove unwanted substances from a liquid or gas

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

rpm

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US / ˌɑ: pi: ˈem /

UK / ˌɑ:r /

A1
  • abbreviation
  • Revolutions per minute

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

molecular

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US / mə'lekjələ(r) /

UK / məˈlɛkjəlɚ /

B2
  • adjecitve
  • About or caused by molecules

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

emit

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US / ɪ'mɪt /

UK / ɪˈmɪt /

B1
  • verb
  • To release or send out (a gas, etc.)

big

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US / bɪɡ /

UK / bɪɡ /

A1
  • adjecitve
  • Popular
  • Serious
  • Large

regulatory

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US / ˈregjələtəri /

UK / ˈreɡjələtɔːri /

A2
  • adjecitve
  • Having the ability or authority to make rules

rod

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US / rɒd /

UK / rɑ:d /

B1
  • noun
  • Straight, thin stick or bar
  • Pole with a line and hook to catch fish with

strict

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US / strɪkt /

UK / strɪkt /

A2
  • adjecitve
  • Tending to enforce rules; severe
  • (Of orders) that must be obeyed

selective

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US / sɪˈlektɪv /

UK / sɪˈlɛktɪv /

A2
  • adjecitve
  • Choosing through thoughtful comparison

reduction

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US / rɪ'dʌkʃn /

UK / rɪˈdʌkʃən /

B1
  • noun
  • Act of making something smaller
  • Amount that a price is decreased by

meet

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US / mi:t /

UK / mit /

A1
  • noun
  • Sporting competition e.g. swimming
  • verb
  • To provide something that is necessary
  • To come together at a certain time or place

large

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US / lɑ:dʒ /

UK / lɑ:rdʒ /

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

majority

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US / mə'dʒɒrətɪ /

UK / məˈdʒɔrɪti, -ˈdʒɑr- /

B1
  • noun
  • Amount that is more than half of a group

industry

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US / 'ɪndəstrɪ /

UK / ˈɪndəstri /

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

button

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US / 'bʌtn /

UK / ˈbʌtn /

A2
  • noun
  • Small round piece material used to fasten clothing
  • Switch activated by pressing
  • verb
  • To fasten e.g. a shirt, coat

share

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US / ʃeə(r) /

UK / ʃɛr /

A2
  • noun
  • Part-ownership in a property, business or company
  • Part of a company you own, shown by a certificate
  • verb
  • To divide something between two or more people
  • To allow others to use your things equally
  • To give information, etc. to someone

plug

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US / plʌg /

UK / plʌɡ /

B1
  • noun
  • Wood, rubber or metal used to block a hole
  • Thing on a wire to connect to electricity supply
  • A promotion of a product
  • verb
  • To use an object to block a hole
  • To promote or advertise a product

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

from

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US / frəm /

UK / frʌm, frɑm,frəm /

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

diesel

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US / ˈdi:zl /

UK / ˈdizəl, -səl /

B1
  • noun
  • Heavy mineral oil used for power engines

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

reduce

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US / rɪ'dju:s /

UK / rɪˈdus, -ˈdjus /

A2
  • verb
  • To try to decrease, e.g. your weight if overweight
  • To boil a liquid until it has decreased in amount
  • To make something smaller in size, amount, level

picture

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US / 'pɪktʃə(r) /

UK / ˈpɪktʃɚ /

A1
  • noun
  • General situation or state of being
  • Mental image of what something is or looks like
  • Movie; film
  • Painting, drawing or photograph on paper or screen
  • verb
  • To understand or imagine something
  • To imagine someone or something in an image

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

cross

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US / krɒs /

UK / krɔs, krɑs /

A2
  • adjecitve
  • Angry and upset
  • From one side of something to the other
  • noun
  • (Of animals) mixture of breeds in one animal
  • Person's name
  • verb
  • To put one thing over another e.g. arms
  • To breed one type of animal or plant with another
  • To not to agree with someone; oppose
  • To go from one side of something to the other
  • To meet at one point

two

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US / tu: /

UK / tu /

A1
  • number
  • 2

ten

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US / ten /

UK / tɛn /

A1
  • number
  • 10

translate

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US / trænsˈleɪt /

UK / trænsˈlet /

A2
  • verb
  • To change something into a different state
  • To be equivalent to; equate to
  • To change a text, speech into a different language
  • To change words from one language into another

payload

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US / ˈpeɪləʊd /

UK / ˈpeˌlod /

C2
  • noun
  • Part of guided missile containing the explosive

join

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US / dʒɔɪn /

UK / dʒɔɪn /

A1
  • verb
  • To bring something close to another, to become one
  • To become a member of
  • To participate in an activity with others

friendly

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US / ˈfrendli /

UK / ˈfrɛndli /

A2
  • adjecitve
  • Acting like a friend; kind and helpful
  • noun
  • Game played not in a competition

efficiency

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US / ɪˈfɪʃnsi /

UK / ɪˈfɪʃənsi /

A2
  • noun
  • Working well; producing something without waste

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

affect

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US / ə'fekt /

UK / əˈfɛkt /

A2
  • verb
  • To cause a change in something else

until

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US / ənˈtɪl /

UK / ʌnˈtɪl /

A1
  • conjunction
  • Up to; to a time when something happens
  • preposition
  • Before (a specific time)

significantly

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US / sɪgˈnɪfɪkəntli /

UK / sɪɡˈnɪfəkəntlɪ /

A2
  • adverb
  • In a way that is important or noticeable
  • In a way that is meaningful

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

harsh

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US / hɑ:ʃ /

UK / hɑrʃ /

B1
  • adjecitve
  • Rough; tough; hard to experience or accept
  • Being severe and unkind

calculation

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US / ˌkælkjuˈleɪʃn /

UK / ˌkælkjəˈleʃən /

B2
  • noun
  • Process or result of using mathematics
  • An educated guess about something

degrade

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US / dɪ'ɡreɪd /

UK / dɪˈɡred /

B2
  • verb
  • To reduce in amount or strength
  • To treat something poorly or without respect

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

version

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US / ˈvə:ʃən /

UK / ˈvɚʒən, -ʃən /

A2
  • noun
  • Different way that someone interprets something
  • New or different form of something
  • An updated form of some software

typically

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US / ˈtɪpɪkli /

UK / ˈtɪpɪklɪ /

B1
  • adverb
  • In a normal or usual way

maintain

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US / meɪn'teɪn /

UK / menˈten /

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

keep

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US / ki:p /

UK / kip /

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

ignite

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US / ɪɡ'naɪt /

UK / ɪɡˈnaɪt /

B2
  • verb
  • To catch fire
  • To cause something to start burning
  • To give energy to something or someone

environmental

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US / ɪnˌvaɪrənˈmentl /

UK / ɛnˌvaɪrənˈmɛntl:, -ˌvaɪən /

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

chemistry

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US / 'kemɪstrɪ /

UK / ˈkɛmɪstri /

B1
  • noun
  • The study of the structure of substances

real

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US / rɪəl /

UK / ˈriəl, ril /

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

crankshaft

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US / ˈkræŋkʃɑːft /

UK / ˈkræŋkʃæft /

A1
  • noun
  • Rotating shaft driven by (or driving) a crank

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)

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

particulate

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US / pɑːˈtɪkjələt /

UK / pɑːrˈtɪkjələt /

A1
  • verb
  • Microscopic particle

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

haul

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US / hɔ:l /

UK / hɔl /

B2
  • verb
  • To pull or drag something heavy (e.g. boat)

fifteen

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US / ˌfɪfˈti:n /

UK / fɪfˈtin /

A1
  • number
  • 15

distance

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US / 'dɪstəns /

UK / ˈdɪstəns /

A2
  • noun
  • Lack of friendliness toward another person
  • Amount of space between two places or things
  • verb
  • To make it clear that you are not involved

company

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US / 'kʌmpənɪ /

UK / ˈkʌmpəni /

A1
  • noun
  • Good feeling from being with someone else
  • A business that sells things or provides services
  • Guests, especially in your home
  • Being with another person rather than alone

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

whereas

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US / ˌweərˈæz /

UK / hwɛrˈæz, wɛr- /

A2
  • conjunction
  • Taking into consideration the fact that

travel

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US / ˈtrævl /

UK / ˈtrævəl /

A1
  • noun
  • Going to other places, esp. distant places
  • verb
  • To go to a place that is far away

sustainable

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US / səˈsteɪnəbl /

UK / səˈsteɪnəbl /

B2
  • adjecitve
  • Capable of continuing for a long time
  • Able to be maintained without running out of

result

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US / rɪ'zʌlt /

UK / rɪˈzʌlt /

A2
  • noun
  • Something produced through tests or experiments
  • Final score of a competition, election or game
  • verb
  • To be the outcome of other causes and effects

initial

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US / ɪ'nɪʃl /

UK / ɪˈnɪʃəl /

A2
  • adjecitve
  • Existing or occurring at the beginning
  • noun
  • First letter of your given name
  • verb
  • To authorize something by writing your initials

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

they

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US / ðeɪ /

UK / ðe /

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

replacement

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US / rɪˈpleɪsmənt /

UK / rɪˈplesmənt /

A2
  • noun
  • Getting a new object to use instead of an old one

network

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US / ˈnetwɜ:k /

UK / ˈnetwɜ:rk /

A2
  • noun
  • Group of computers connected to each other
  • System of connections
  • Group who work closely with each other
  • Group of radio or television stations, programs
  • verb
  • To join a group of computers together
  • To exchange information with colleagues, contacts

electric

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US / ɪˈlektrɪk /

UK / ɪˈlɛktrɪk /

A2
  • adjecitve
  • Creating a feeling of excitement
  • Using electricity

dollar

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US / ˈdɒlə(r) /

UK / ˈdɑ:lə(r) /

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

atom

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US / 'ætəm /

UK / ˈætəm /

B1
  • noun
  • Smallest bit that matter can be broken down into

speed

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US / spi:d /

UK / spid /

A2
  • noun
  • How fast or slow something is or is done
  • verb
  • To move quickly when completing an action
  • To drive a vehicle faster than laws allow

spark

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US / spɑ:k /

UK / spɑrk /

B1
  • noun
  • Small piece of burning material produced by fire
  • Tiny, brief bit of light caused by electric energy
  • First small part of an idea or feeling
  • verb
  • To make tiny, brief bits of light
  • To start something new; To set in motion, activate

length

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US / leŋθ /

UK / leŋθ /

A2
  • noun
  • Distance from one end of a pool to the other
  • Measurement of distance or of time

main

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US / meɪn /

UK / men /

A1
  • adjecitve
  • Most important; most often used

constantly

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US / ˈkɒnstəntli /

UK / ˈkɑnstəntlɪ /

B1
  • adverb
  • Frequently, or without pause

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

minimize

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US / 'mɪnɪmaɪz /

UK / ˈmɪnəˌmaɪz /

B1
  • verb
  • To make something seem small or less important

crucial

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US / 'kru:ʃl /

UK / ˈkruʃəl /

B1
  • adjecitve
  • Extremely important or necessary

dioxide

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US / daɪˈɒksaɪd /

UK / daɪˈɑksaɪd /

B2
  • noun
  • An oxide containing two oxides per molecule

burst

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US / bɜ:st /

UK / bɚst /

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

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

their

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US / ðɛː /

UK / ðer /

A1
  • determiner
  • Belonging to them

powerhouse

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US / ˈpaʊəhaʊs /

UK / ˈpaʊərhaʊs /

A1
  • noun
  • Highly energetic and indefatigable person

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

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

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

thank

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US / θæŋk /

UK / θæŋk /

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

productivity

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US / ˌprɒdʌkˈtɪvəti /

UK / ˌprɑ:dʌkˈtɪvəti /

B1
  • noun
  • Rate at which people or machines produce

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

endure

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US / ɪn'djʊə(r) /

UK / ɛnˈdʊr, -ˈdjʊr /

B1
  • verb
  • To last for a long time; continue to exist
  • To accept difficulties without struggle

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

feature

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US / 'fi:tʃə(r) /

UK / ˈfitʃɚ /

A2
  • adjecitve
  • Main; important
  • noun
  • Special report in a magazine or paper
  • Distinctive or important point of something
  • verb
  • To highlight or give special importance to

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

transformation

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US / ˌtrænsfəˈmeɪʃn /

UK / ˌtrænsfərˈmeɪʃn /

C2
  • noun
  • A complete change in shape or form of something

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

passenger

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US / 'pæsɪndʒə(r) /

UK / ˈpæsəndʒɚ /

A2
  • noun
  • Person who is traveling in a vehicle

journey

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US / 'dʒɜ:nɪ /

UK / ˈdʒɚni /

A2
  • noun
  • Act of traveling from one place to another; trip
  • verb
  • To travel through a place

engine

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US / 'endʒɪn /

UK / ˈɛndʒɪn /

A2
  • noun
  • Machine that changes energy into mechanical motion
  • The part of a train that pulls railway cars

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

beneficial

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US / ˌbenɪˈfɪʃl /

UK / ˌbɛnəˈfɪʃəl /

B1
  • adjecitve
  • Giving an advantage, having a helpful effect

pollutant

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US / pəˈlu:tənt /

UK / pəˈlutn:t /

C1
  • noun
  • Toxic substance harmful to the environment

peak

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US / pi:k /

UK / pik /

B1
  • noun
  • Part of a cap that sticks out over your eyes
  • The very top of a mountain
  • State when something is at its best
  • Time or point when the highest level occurs
  • verb
  • To reach the highest or best point

gradual

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US / ˈgrædʒuəl /

UK / ˈɡrædʒuəl /

B1
  • adjecitve
  • Moving slowly by small amounts, over time

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

thousand

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US / ˈθaʊznd /

UK / ˈθaʊzənd /

A1
  • number
  • Number 1,000

spontaneously

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US / spɒn'teɪnɪəslɪ /

UK / spɔnˈtenɪəslɪ /

B1
  • adverb
  • In a sudden, unplanned way

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

refuel

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US / ˌri:'fju:əl /

UK / riˈfjuəl /

C1
  • verb
  • To put more fuel into a vehicle, etc.

piston

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US / 'pɪstən /

UK / ˈpɪstən /

B2
  • noun
  • Sliding, cylindrical piece moved by fuel pressure

matter

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US / 'mætə(r) /

UK / ˈmætɚ /

A1
  • noun
  • Material all things are made of that fills space
  • Problem or reason for concern
  • verb
  • To be of great importance; to count

million

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US / ˈmɪljən /

UK / ˈmɪljən /

A1
  • number
  • 1,000,000

imagine

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US / ɪ'mædʒɪn /

UK / ɪˈmædʒɪn /

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

inside

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US / ˌɪn'saɪd /

UK / ɪnˈsaɪd, ˈɪnˌsaɪd /

A2
  • adjecitve
  • Being in something
  • Being in a building
  • adverb
  • Into a house; indoors
  • noun
  • Inner part or surface of something

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

four

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US / fɔ:(r) /

UK / fɔr, for /

A1
  • number
  • 4

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

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

contain

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US / kənˈteɪn /

UK / kənˈten /

A2
  • verb
  • To keep something from spreading
  • To hold something inside something else

regulation

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US / ˌregjuˈleɪʃn /

UK / ˌrɛɡjəˈleʃən /

A2
  • noun
  • Act of controlling something with rules or orders
  • other

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

ever

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US / 'evə(r) /

UK / ˈɛvɚ /

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

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

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

terrain

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US / təˈreɪn /

UK / təˈren /

B1
  • noun
  • Characteristics (e.g. rough) of a piece of land

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

rough

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US / rʌf /

UK / rʌf /

A2
  • adjecitve
  • Causing or involving violence, force, and harm
  • (Of situations) tough; difficult to get through
  • Being imprecise, inexact, and not detailed
  • Not gentle or not soft
  • Having an uneven or not smooth surface
  • Raw and natural
  • (Of sea weather etc.) not calm with strong winds
  • Involving or causing sudden, forceful movements
  • adverb
  • In a manner that is difficult, or violent
  • noun
  • Violent, loud, and unpleasant person
  • Incomplete drawing or draft done lacking detail
  • verb
  • To make something less smooth

ideal

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US / aɪˈdi:əl /

UK / aɪˈdiəl, aɪˈdil /

A2
  • adjecitve
  • Exactly right; could not be better
  • Which is thought of as being perfect

actually

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US / ˈæktʃuəli /

UK / ˈæktʃuəli /

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

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

scientific

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US / ˌsaɪənˈtɪfɪk /

UK / ˌsaɪənˈtɪfɪk /

A2
  • adjecitve
  • Concerning academic study of the physical world

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

quick

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US / kwɪk /

UK / kwɪk /

A1
  • adjecitve
  • Using very little time; moving far in little time
  • Learning and understanding rapidly and easily

here

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US / hɪə(r) /

UK / hɪr /

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

compress

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US / kəmˈpres /

UK / kəmˈprɛs /

B1
  • verb
  • To press tightly together
  • To make smaller; reduce in time, size etc.

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

wheel

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US / wi:l /

UK / wi:l /

A2
  • noun
  • Round thing that rolls, used for moving things
  • verb
  • To move something which has wheels or is on wheels
  • To turn or cause to turn something in a circle

reason

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US / 'ri:zn /

UK / ˈrizən /

A1
  • noun
  • Ability to think about facts and form a judgment
  • Explanation for why something occurred or was done
  • verb
  • To think and make conclusions in a logical manner

machinery

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US / məˈʃi:nəri /

UK / məˈʃinəri, -ˈʃinri /

A2
  • noun
  • System/processes to get official approval, etc.
  • Machines in general
  • Inner, working parts of a machine

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

electrification

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US / ɪˌlektrɪfɪˈkeɪʃn /

UK / ɪˌlektrɪfɪˈkeɪʃn /

C1
  • noun
  • Act of providing electricity

carbon

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US / 'kɑ:bən /

UK / ˈkɑrbən /

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

wonder

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US / 'wʌndə(r) /

UK / ˈwʌndɚ /

A1
  • noun
  • Surprise caused by experiencing something amazing
  • verb
  • To feel curious about something
  • To think or consider about something over time

delve

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US / delv /

UK / delv /

C1
  • verb
  • To search, especially as if by digging, in order to find a thing or information

for

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US / fə(r) /

UK / fɔr,fə /

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

infrastructure

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US / 'ɪnfrəstrʌktʃə(r) /

UK / ˈɪnfrəˌstrʌktʃɚ /

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

undergo

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US / ˌʌndəˈgəʊ /

UK / ˌʌndərˈgoʊ /

B1
  • verb
  • To experience or endure something (bad)

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)

consumer

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US / kənˈsju:mə(r) /

UK / kənˈsumɚ /

A2
  • noun
  • Person who buys goods or services

load

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US / ləʊd /

UK / lod /

A2
  • noun
  • Large, often heavy, amount of a thing to be moved
  • A burden; heavy responsibility
  • Many or much of something; a lot of
  • Items that fill a truck, machine
  • verb
  • To put in items for use (e.g. bullets in a gun)

modern

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US / ˈmɔdən /

UK / ˈmɑdən /

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

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)

range

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US / reɪndʒ /

UK / rendʒ /

A2
  • noun
  • Cooking stove with multiple burners
  • Given distance from a point; how far plane can fly
  • Large grassy area where cattle wander and feed
  • Group or chain of mountains
  • Set of things with something in common
  • Limits within which something extends or varies
  • A set of products, e.g. so that people can choose
  • verb
  • To cover an area from one point to another
  • To extend to or vary within given limits
  • To put things in a row or in line
  • To wander or explore

stroke

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US / strəʊk /

UK / strok /

B1
  • noun
  • When blood cannot get to brain, causing damage
  • Mark made by a pen, pencil or brush
  • One movement of oars on a boat
  • verb
  • To rub your hand in a caring way on something

technology

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US / tek'nɒlədʒɪ /

UK / tɛkˈnɑlədʒi /

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

automotive

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US / ˌɔ:təˈməʊtɪv /

UK / ˌɔtəˈmotɪv /

C1
  • adjecitve
  • Concerning cars

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

particularly

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US / pəˈtikjuləli /

UK / pɚˈtɪkjələli, pəˈtɪk- /

A2
  • adverb
  • Specially; more than others

sprinter

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US / sprɪntə(r) /

UK / sprɪntə(r) /

B1
  • noun
  • Someone who runs a short distance at top speed

down

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US / daʊn /

UK / daʊn /

A1
  • adjecitve
  • Being sad, sick, or unhappy
  • Not operating, working, or functioning as expected
  • adverb
  • In a sitting or lying position
  • Towards or on the ground, floor, or bottom
  • Written or copied onto a piece of paper or book
  • noun
  • A period of play in American Football
  • The soft, smooth hairs that cover a bird's body
  • preposition
  • Along something's path, course, or direction
  • Going from a higher position to a lower position
  • verb
  • To eat or drink very quickly and without stopping

force

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US / fɔ:s /

UK / fɔrs, fors /

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

include

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US / ɪnˈklu:d /

UK / ɪnˈklud /

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

quiet

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US / 'kwaɪət /

UK / ˈkwaɪɪt /

A1
  • adjecitve
  • Hidden, or done in a private way
  • Not loud; making very little sound
  • verb
  • To cause to become calmer or less loud

torque

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US / tɔ:k /

UK / tɔrk /

B2
  • noun
  • Turning or twisting force

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

annual

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US / ˈænjuəl /

UK / ˈænjuəl /

A2
  • adjecitve
  • Happening once a year, or every year
  • noun
  • Book (in a series) released each year

energy

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US / 'enədʒɪ /

UK / ˈɛnədʒi /

A2
  • noun
  • Physical or mental strength

exceed

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US / ɪk'si:d /

UK / ɪkˈsid /

B1
  • verb
  • To be greater in number, degree than something
  • To go above or beyond a limit or rule

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

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

mix

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US / mɪks /

UK / mɪks /

A2
  • noun
  • A combination of more than two things
  • verb
  • To combine two or more things to make one
  • To meet and get along with others, e.g. at a party

mean

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US / mi:n /

UK / min /

A1
  • adjecitve
  • Being good at
  • Nasty; unkind
  • Not liking to spend money; cheap; stingy
  • noun
  • Average of a set of numbers
  • verb
  • To express a particular idea or thought
  • To intend to do something in particular
  • To have a particular meaning or value

require

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US / rɪ'kwaɪə(r) /

UK / rɪˈkwaɪr /

A2
  • verb
  • To demand that someone does something
  • To need to do something, to make it necessary

standstill

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US / ˈstændstɪl /

UK / ˈstændˌstɪl /

A1
  • noun
  • Situation in which no advancement is possible

task

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US / tɑ:sk /

UK / tæsk /

A2
  • noun
  • Big or small piece of work someone has to do
  • verb
  • To be given something to do, e.g. wash dishes

suddenly

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US / ˈsʌdənli /

UK / ˈsʌdn:lɪ /

A1
  • adverb
  • In an unexpected or very quick manner

sustain

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US / sə'steɪn /

UK / səˈsten /

B2
  • verb
  • To lengthen or continue to do something
  • To support or maintain someone or something
  • To suffer something damaging or bad

type

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US / taɪp /

UK / taɪp /

A1
  • noun
  • Printed letters or blocks used for printing them
  • Group of things or people sharing common features
  • verb
  • To identify something belonging to a group
  • To write by touching keys on a keyboard

cause

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US / kɔ:z /

UK / kɔz /

A2
  • noun
  • Belief, goal or organization that people support
  • Reason for
  • verb
  • To make something happen; create effect or result

environmentally

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US / ɪnˌvaɪrən'mentəlɪ /

UK / ɪnˌvaɪrən'mentəlɪ /

A2
  • adverb
  • So as to affect the environment/the natural world

hydrogen

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US / ˈhaɪdrədʒən /

UK / ˈhaɪdrədʒən /

B1
  • noun
  • Lightest of all chemical elements

bottom

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US / 'bɒtəm /

UK / ˈbɑtəm /

A2
  • adjecitve
  • Concerning the part under something, e.g. a vase
  • noun
  • The part of your body you sit on
  • Lowest position, often in a company or contest
  • Lowest part of something; part on which it rests
  • Lowest level, part or point of an object
  • The part under something, e.g. a vase
  • verb
  • To hit the lowest part of something

cylinder

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US / ˈsɪlɪndə(r) /

UK / ˈsɪləndɚ /

B2
  • noun
  • Tube shape with flat ends

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'

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

existence

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US / ɪɡ'zɪstəns /

UK / ɪɡˈzɪstəns /

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

informative

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US / ɪnˈfɔ:mətɪv /

UK / ɪnˈfɔ:rmətɪv /

A2
  • adjecitve
  • Giving a lot of information

typical

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US / ˈtɪpɪkl /

UK / ˈtɪpɪkəl /

A2
  • adjecitve
  • Normal; usual; expected

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

requirement

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US / rɪ'kwaɪəmənt /

UK / rɪˈkwaɪrmənt /

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

stay

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US / steɪ /

UK / ste /

A1
  • noun
  • Legal order to stop or delay an action
  • Strong rope or wire that supports a ship's mast
  • Period of time spent living in or visiting a place
  • verb
  • To keep trying without giving up
  • To remain in the same place and not move away
  • To spend time visiting a place or someone's home

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)

different

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US / ˈdɪfrənt /

UK / ˈdɪfrənt /

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

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

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

impact

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US / 'ɪmpækt /

UK / ˈɪmˌpækt /

A2
  • noun
  • A striking effect or result to hit with force
  • Very strong influence
  • Act or force of one thing hitting something else
  • verb
  • To hit or strike someone or something with force

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’

trucking

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US / trʌkɪŋ /

UK / trʌkɪŋ /

B1
  • verb
  • To transport something on a lorry, van

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

makeup

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US / 'meɪkʌp /

UK / ˈmekˌʌp /

B2
  • noun
  • Substance put on the face to make you look pretty

thirty

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US / 'θɜ:tɪ /

UK / ˈθə:ti /

A1
  • number
  • 30

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

conscious

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US / ˈkɒnʃəs /

UK / ˈkɑnʃəs /

A2
  • adjecitve
  • Aware of what is going on around you

increase

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US / ɪn'kri:s /

UK / ɪnˈkris /

A1
  • noun
  • Fact of increasing; amount something grows by
  • verb
  • To make or become larger in size or amount

pollute

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US / pə'lu:t /

UK / pəˈlut /

B1
  • verb
  • To make dirty, impure or harmful to environment
  • To make something negative

construction

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US / kən'strʌkʃn /

UK / kənˈstrʌkʃən /

A2
  • noun
  • Act of building something; thing that is built
  • Something that is made using different parts
  • The way words are organized in a sentence
  • The way something is made or structured

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

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

mileage

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US / ˈmaɪlɪdʒ /

UK / ˈmaɪlɪdʒ /

A2
  • noun
  • Distance traveled, measured in miles

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

steady

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US / 'stedɪ /

UK / ˈstɛdi /

B2
  • adjecitve
  • Happening or developing at a regular rate
  • Continuing without stopping or changing over time
  • Firmly fixed or supported; not likely to fall over
  • noun
  • Your boyfriend or girlfriend
  • verb
  • To make constant, unchanging or staying the same
  • To hold something/someone so they stop moving

six

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US / sɪks /

UK / sɪks /

A1
  • number
  • 6

trucker

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US / ˈtrʌkə(r) /

UK / ˈtrʌkɚ /

A2
  • noun
  • Someone who drives a truck as an occupation

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

properly

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US / ˈprɔpəlɪ /

UK / ˈprɑːpərli /

A2
  • adverb
  • In an appropriate or correct manner

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

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

accelerate

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US / əkˈseləreɪt /

UK / ækˈsɛləˌret /

B1
  • verb
  • To cause to occur earlier than expected
  • To increase the speed or rate of something

catalytic

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US / ˌkætə'lɪtɪk /

UK / ˌkætlˈɪtɪk /

C1
  • adjecitve
  • Concerning or causing or involving catalysis

government

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US / ˈgʌvənmənt /

UK / ˈɡʌvənmənt /

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

muscle

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US / 'mʌsl /

UK / ˈmʌsəl /

A2
  • noun
  • Physical power
  • Body tissue that moves parts of the body
  • verb
  • To use or muscles of force to get what you want

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

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

end

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US / end /

UK / ɛnd /

A1
  • noun
  • The point where a process or activity stops
  • A point that marks the limit of something; finish
  • Goal or desired result
  • The tip, edge or limit of something
  • verb
  • To be the last part of something

furthermore

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US / ˌfɜ:ðəˈmɔ:(r) /

UK / ˌfɜ:rðərˈmɔ:r /

B1
  • adverb
  • In addition to what has been said

ratio

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US / ˈreɪʃiəʊ /

UK / ˈreɪʃioʊ /

C2
  • noun
  • The relationship in relative size, etc.

uncover

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US / ʌn'kʌvə(r) /

UK / ʌnˈkʌvɚ /

B1
  • verb
  • To remove what is on top to show something
  • (Journalist) to discover some news to be reported

choice

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US / tʃɔɪs /

UK / tʃɔɪs /

A1
  • adjecitve
  • Of good quality or taste; desirable
  • noun
  • Decision between two or more possibilities

car

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US / kɑ:(r) /

UK / kɑr /

A1
  • noun
  • A vehicle with wheels and engine to carry people

duty

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US / 'dju:tɪ /

UK / ˈduti, ˈdju- /

A2
  • noun
  • Work required by your job or position
  • A tax (on imported goods)

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

negotiable

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US / nɪˈgəʊʃiəbl /

UK / nɪˈgoʊʃiəbl /

C1
  • adjecitve
  • That can be discussed to come to an agreement

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)

curious

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US / ˈkjʊəriəs /

UK / ˈkjʊriəs /

A2
  • adjecitve
  • Wanting to know more about something
  • Attracting interest by being strange or unusual

clear

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US / klɪə(r) /

UK / klɪr /

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

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

behind

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US / bɪˈhaɪnd /

UK / bɪˈhaɪnd /

A1
  • adjecitve
  • Concerning a later or slower time than expected
  • Being in a losing position in a sporting event
  • Being in the past; old fashioned
  • adverb
  • Remaining
  • noun
  • The part of the body that one sits on
  • preposition
  • At or toward the back of someone or something
  • Supporting or helping someone

handle

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US / 'hændl /

UK / ˈhændl /

A2
  • noun
  • The part of a door you hold to open it
  • Thing you hold to carry or open a bag, pan etc.
  • verb
  • To cope with or take responsibility for
  • To control a machine, car etc.
  • To control or be controlled /used in a certain way
  • To deal with a particular situation/person; manage
  • To buy, sell, or move materials or goods
  • To hold, control, or use something with the hands
  • To touch objects with the hands to look at them

ninety

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US / 'naɪntɪ /

UK / ˈnaɪnti /

A1
  • number
  • 90

often

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US / ˈɔfən /

UK / ˈɔfən,ˈɑfən,ˈɔftən,ˈɑf- /

A1
  • adverb
  • Many times; frequently; on many occasions

tank

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US / tæŋk /

UK / tæŋk /

B1
  • noun
  • Container for holding liquid or gas
  • Military vehicle that can go over rough areas
  • verb
  • To fail completely or badly
  • To deliberately lose a game or contest

wear

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US / weə(r) /

UK / wer /

A1
  • noun
  • Clothing designed for a purpose e.g. skiing
  • Damage from continual use over a long period
  • verb
  • To have clothes, glasses, shoes etc. on your body
  • To display an expression or emotion on the face
  • To become weaker or damaged from continued use
  • Introduction to Video Content
  • Diesel VS. Gasoline - THIS Is The Most Effective Fuel For Trucks!The vast majority of cars in the United States are gasoline powered. In fact, about ninety-six point eight percent of passenger cars and light trucks are gasoline powered. However, when it comes to big semi trucks, they are all diesel powered and not running on gasoline. There are four main reasons for this preference.To understand why trucks prefer diesel, it is important to examine the molecular makeup of diesel fuel compared to gasoline. Diesel fuel contains larger hydrocarbon molecules and more carbon atoms, resulting in a higher energy density. In simpler terms, if gasoline is like a sprinter providing quick bursts of energy, diesel is like a marathon runner with a steady and long-lasting supply of energy. This inherent energy density makes diesel an ideal choice for vehicles that require sustained power over long distances, such as trucks.The first reason why trucks are diesel powered is because of the importance of torque. Trucks need significant torque, which is the twisting force that helps move heavy loads. Torque provides the necessary strength to efficiently and safely handle demanding tasks. It allows trucks to start from a standstill, accelerate with heavy loads, and maintain speed while climbing hills or navigating rough terrain. Diesel engines are built with higher compression ratios, creating intense heat that causes the diesel fuel to ignite spontaneously when injected. This results in a powerful, high torque output even at low engine speeds. In addition, diesel engines typically have a longer stroke length than gasoline engines.The second reason why trucks favor diesel is the availability of fuel. Diesel fuel is readily available, especially along major trucking routes. This ensures that trucks can easily refuel during long hauls without the need for detours or inconvenience.The third reason is efficiency. Diesel engines are generally more fuel-efficient than gasoline engines, especially when it comes to large vehicles like trucks. This means that trucks running on diesel can cover more distance with less fuel consumption, reducing costs for trucking companies and improving overall efficiency.The fourth and final reason is durability. Diesel engines are known for their durability and longevity. They are designed to withstand heavy use and high mileage, making them ideal for the demanding nature of trucking operations. This durability translates to reduced maintenance and repair costs, as well as increased uptime for trucks.In conclusion, the use of diesel as the primary fuel for trucks is justified by several factors. Its higher energy density, torque capabilities, fuel availability, efficiency, and durability make it the most effective choice for trucking operations. While gasoline-powered cars dominate the market, diesel remains the preferred fuel for heavy-duty trucks and plays a crucial role in the efficient transportation of goods.
  • Subtitles section
  • The vast majority of cars in the United States are gasoline powered.
  • Actually, about ninety six point eight percent of passenger cars and light trucks are gasoline powered.
  • But why is it that the big semi trucks are all diesel powered and not driving on gasoline?
  • Well, there are four main reasons for this.
  • But first, let's look at the chemistry of diesel vs gasoline.
  • To grasp why trucks favor diesel, we'll start with a look at the molecular makeup of these two fuels.
  • Diesel fuel contains larger hydrocarbon molecules compared to gasoline.
  • These larger molecules contain more carbon atoms, which results in a higher energy density for diesel.
  • Imagine it like this.
  • If gasoline is like a sprinter delivering quick bursts of energy, diesel is the marathon runner with a long lasting steady supply of energy.
  • This inherent energy density makes diesel an ideal choice for vehicles that need sustained power over long distances, like trucks.
  • Which leads us to the first reason why trucks are diesel powered.
  • Torque matters.
  • Trucks require substantial torque, the twisting force that gets heavy loads moving.
  • Torque provides the necessary muscle to handle these demanding tasks efficiently and safely.
  • It's what allows trucks to start from a standstill, accelerate with heavy loads, and maintain speed while climbing hills or navigating rough terrain.
  • Unlike gasoline engines, diesel engines are built with higher compression ratios.
  • Picture a piston compressing air inside the cylinder before ignition.
  • This compression generates intense heat, causing the diesel fuel to spontaneously ignite when injected.
  • This process results in a powerful, high torque output, even at low engine speeds.
  • Diesel engines typically have a longer stroke length than gasoline engines.
  • This means that the piston travels further down the cylinder before it reaches the bottom.
  • This longer stroke length gives the piston more time to push against the crankshaft, which reduces more torque.
  • In a gasoline engine, the fuel is mixed with air and ignited by a spark plug.
  • This creates a more gradual combustion process, which does not produce as much torque.
  • Also, diesel engines generate their peak torque at lower RPMs, compared to gasoline engines.
  • This low end torque is particularly beneficial for heavy duty applications, like trucks and industrial machinery, where a strong initial push is required to move heavy loads.
  • So, diesel engines are just way more effective to produce torque than gasoline engines, which is one of the reasons, but it's also because of... Fuel Efficiency
  • Diesel engines are more fuel efficient than gasoline engines, because they burn fuel more efficiently.
  • Diesel fuel has a higher energy density than gasoline, so it takes less fuel to produce the same amount of power.
  • Diesel engines also have a higher compression ratio than gasoline engines, which means that they can extract more energy from the fuel.
  • This translates to longer driving ranges and reduced fuel costs for trucking companies.
  • Think of it as getting more miles per gallon, critical for long haul trucks that cross vast distances.
  • A long haul trucker can drive hundreds of miles on a single tank of diesel, reducing downtime for refueling and increasing productivity.
  • But you might wonder why fuel efficiency is so important for truck companies.
  • Then let's try and do the math.
  • Diesel engines are typically twenty to thirty five percent more fuel efficient than gasoline engines, and the semi trucks average six point five miles per gallon.
  • The annual mileage of a typical long haul semi truck driver in the United States is around one hundred thousand miles, which means a semi truck would use around seventy thousand dollars on diesel a year, whereas a gasoline engine would use around eighty four thousand dollars for the same miles.
  • And imagine you have ten trucks.
  • Then, it suddenly means a lot to your company's existence, whether you are fuel economical or not.
  • This would also require bigger fuel tanks, which affect your payload, or you would have to stop to refuel way more often.
  • And here, we have not even included in the calculation the costs of services and maintenance, which we delve deeper into now.
  • Durability Matters
  • Trucks endure harsh conditions daily.
  • Durability is a non negotiable requirement.
  • Diesel engines are built with heavier and more robust components.
  • They have stronger crankshafts, connecting rods, pistons, and cylinder heads.
  • This sturdier construction allows them to withstand the higher compression ratios and greater stresses associated with diesel combustion.
  • Diesel engines generate their peak torque at lower RPMs compared to gasoline engines.
  • This means that they operate within a narrower and less stressful RPM range, resulting in reduced wear and tear on engine components.
  • The stronger engine components and lower RPM operation result in less wear and tear over time.
  • resulting in diesel engines being able to drive longer before needing service and maintenance.
  • Diesel engines often require less frequent maintenance and fewer parts replacements, contributing to lower overall operating costs and reducing downtime.
  • Furthermore, diesel engines typically have longer lifespans than gasoline engines when properly maintained, which is why you also see semi trucks exceeding one million and some even two million miles.
  • But another crucial reason that semi trucks use diesel and not gasoline is emissions control meeting regulations.
  • When comparing the carbon dioxide CO₂ emissions of diesel and gasoline semi trucks, diesel trucks typically emit less CO₂ per unit of energy produced.
  • This is due to the higher energy density of diesel fuel and the greater thermal efficiency of diesel engines.
  • Diesel engines are generally more fuel efficient than gasoline engines, especially in heavy duty applications like semi trucks.
  • Because they extract more energy from each gallon of fuel, they produce fewer CO₂ emissions per mile traveled.
  • Diesel engines historically produced higher levels of pollutants like nitrogen oxides and particulate matter.
  • However, advancements like Selective Catalytic Reduction, SCR, and Diesel Particulate Filters, DPF, have made modern diesel engines much cleaner.
  • They now meet or exceed stringent emissions standards, allowing trucks to run responsibly while minimizing environmental impact.
  • So it's not really because diesel is polluting less, but because it is more fuel efficient.
  • They produce fewer CO₂ emissions per mile traveled.
  • But what if you look ten to fifteen years ahead?
  • The Future of Semi Truck Fuel?
  • Manufacturers are constantly improving engine designs and emissions control technologies to meet stricter regulations and reduce environmental impact.
  • Modern diesel engines are cleaner and more fuel efficient than ever before.
  • They feature advanced emissions control systems like SCR and DPF to reduce nitrogen oxides and particulate emissions.
  • However, governments and consumers are becoming more environmentally conscious.
  • They are demanding products that are transported in an environmentally friendly way.
  • This is pushing manufacturers to develop and manufacture other types of trucks, such as electric trucks, which reduce zero emission, have lower operating costs, are quieter, as they have no engine, and produce high torque from a standstill.
  • However, it's not all good.
  • The production of an electric semi truck has a much larger CO₂ emission than a diesel truck.
  • You have a limited driving range before you need to charge, which can be very time consuming.
  • Also, there is very limited charging networks for trucks.
  • Furthermore, the battery will degrade over time.
  • There are limited models available as electric and the upfront cost is significantly higher.
  • There is also the solution of hydrogen fuel cell trucks, natural gas trucks, and different hybrid versions.
  • However, they all have some limitations or downsides, which make them unable to provide a better or more versatile solution than diesel, and therefore cannot replace the diesel engines as it is now.
  • It's likely that the trucking industry will see a mix of these technologies and fuels in the coming years, with a growing emphasis on electrification and hydrogen as cleaner alternatives.
  • The pace of adoption will depend on various factors, including technological advancements, infrastructure development, regulatory incentives, and market demand.
  • While it's uncertain if all trucks will be electric or hydrogen powered within the next ten to fifteen years, it's clear that the industry is undergoing a significant transformation toward cleaner and more sustainable transportation solutions.
  • There you have it, the detailed exploration of why trucks use diesel instead of gasoline.
  • From the molecular level to real world applications, we've uncovered the scientific, engineering, and practical reasons behind this choice.
  • It's this synergy of torque, efficiency, durability, and emissions control that makes diesel the powerhouse for trucks on the road today.
  • Thank you for joining us on this enlightening journey.
  • If you found this video informative and engaging, please hit the like button, share it with fellow truck enthusiasts, and subscribe for more captivating automotive insights.
  • Until next time, keep those wheels turning and stay curious!