Preparing usage notes, please check back later
acidic
US /əˈsɪdɪk/
UK /əˈsɪdɪk/
- Adjective
- Containing acid
B1Moreadd up to
US /æd ʌp tu/
UK /æd ʌp tu:/
- Phrasal Verb
- To amount to a particular sum or total.
- To have a particular result or effect; to be equal to.
A2Morealong with
US /əˈlɔŋ wɪð/
UK /əˈlɔŋ wið/
- Preposition
- In addition to; together with.
- Adverb
- In company or together with someone or something.
- Including; in addition to.
A2Moreas a rule
US /æz e rul/
UK /æz ə ru:l/
- Phrase
- Generally; usually
B1Moreat least
US /æt list/
UK /æt li:st/
- Adverb
- As a minimum
- Not less than
- Phrase
- No less than; at the minimum
- Used to indicate that something is positive in a bad situation.
C2Moreatom
US /ˈætəm/
UK /'ætəm/
- Noun
- Smallest bit that matter can be broken down into
B1Moreback down
US /bæk daʊn/
UK /bæk daun/
- Phrasal Verb
- To admit you were wrong; stop claiming
A1Morebalance it out
US
UK
- Phrasal Verb
- To equalize or compensate for something, often to create a sense of fairness or equilibrium.
A1Morebalance out
US /ˈbæləns aʊt/
UK /ˈbæləns aut/
- Phrasal Verb
- To make or become more equal to another thing
A2Morebased on
US
UK
- Phrasal Verb
- To use something as the foundation or starting point for something else.
- Preposition
- Using something as the main idea or foundation.
- Relying on something as evidence or justification.
A1Morebond
US /bɑnd/
UK /bɒnd/
- Noun (Countable/Uncountable)
- Rope, chain or other thing used to tie someone up
- Closeness that is shared between people or groups
- Verb (Transitive/Intransitive)
- To develop a close relationship with
- To become joined or connected, e.g. using glue
A2TOEICMorebottom
US /ˈbɑtəm/
UK /'bɒtəm/
- Noun
- The part of your body you sit on
- Lowest position, often in a company or contest
- Verb (Transitive/Intransitive)
- To hit the lowest part of something
- To provide with a bottom.
A2TOEICMorebreak apart
US
UK
- Phrasal Verb
- To separate into pieces; disintegrate.
- To end a relationship or association.
A2Moreby itself
US /baɪ ɪtˈsɛlf/
UK /bai itˈself/
- Adverb
- Alone; without help or assistance.
- Without any external influence or aid.
A2Morecharge
US /tʃɑrdʒ/
UK /tʃɑ:dʒ/
- Verb (Transitive/Intransitive)
- To run quickly toward someone to attack them
- To ask for money as a price for a service or goods
- Noun (Countable/Uncountable)
- An attack by running quickly toward someone
- A price for a service or goods
A2Morechemical
US /ˈkɛmɪkəl/
UK /ˈkemɪkl/
- Noun (Countable/Uncountable)
- Basic substance produced by mixing elements
- The branch of science concerned with the substances of which matter is composed, the investigation of their properties and reactions, and the use of such reactions to form new substances.
- Adjective
- Made of various elements
A2Morechlorine
US /ˈklɔːrˌiːn/
UK /ˈklɔ:ri:n/
- Uncountable Noun
- Greenish-yellow gas with a strong smell
B2Moreconcentration
US /ˌkɑ:nsnˈtreɪʃn/
UK /ˌkɒnsnˈtreɪʃn/
- Noun (Countable/Uncountable)
- Amount or number of something in a thing or place
- Paying (a lot of) attention to a task
A2Moreconfiguration
US /kənˌfɪɡjəˈreʃən/
UK /kənˌfɪgəˈreɪʃn/
- Noun
- A shape or outline; a method of arrangement
B2Moreconsist of
US /kənˈsɪst ʌv/
UK /kənˈsist ɔv/
- Phrasal Verb
A2Moreconsists of
US
UK
- Phrasal Verb
- Is made up or composed of.
A1Morecore
US /kɔr, kor/
UK /kɔ:(r)/
- Transitive Verb
- To take out the central section of a fruit
- Noun (Countable/Uncountable)
- Important central part of something
- The hard central part of certain fruits, containing the seeds.
A2Moredefine
US /dɪˈfaɪn/
UK /dɪ'faɪn/
- Transitive Verb
- To explain the meaning of words
- To set or mark the limits of something
A2TOEICMoredepend
US /dɪˈpend/
UK /dɪˈpend/
- Verb (Transitive/Intransitive)
- Be controlled or determined by (someone/something)
- To rely on someone or something for support, help, or existence.
B1TOEICMoredepending on
US
UK
- Phrasal Verb
- To rely on for support (financial or emotional)
- Influenced or determined by.
- Preposition
- Subject to; contingent on
- Relying on someone or something for support or assistance.
A2Moredissolve
US /dɪˈzɑ:lv/
UK /dɪˈzɒlv/
- Verb (Transitive/Intransitive)
- To cause something to end
- To dismiss, e.g. a law-making body
B2Moreelectron
US /ɪˈlektrɑ:n/
UK /ɪˈlektrɒn/
- Countable Noun
- A negatively charged particle
B2Moreelement
US /ˈɛləmənt/
UK /'elɪmənt/
- Noun (Countable/Uncountable)
- Essential or particular part of something
- A substance that cannot be broken down into simpler substances by chemical means.
A2TOEICMoreenergy
US /ˈɛnədʒi/
UK /'enədʒɪ/
- Noun (Countable/Uncountable)
- Physical or mental strength
- Enthusiasm and determination.
A2Moreentropy
US /ˈɛntrəpi/
UK /ˈentrəpi/
- Uncountable Noun
- Lack of order in a system
C1Moreequilibrium
US /ˌikwəˈlɪbriəm, ˌɛkwə-/
UK /ˌi:kwɪˈlɪbriəm/
- Noun (Countable/Uncountable)
- A state of balance or harmony
- Calm, quiet, undisturbed emotional state
C2TOEICMoreexcept for
US /ɪkˈsɛpt fɔr/
UK /ikˈsept fɔ:/
- Preposition
- Not including; excluding.
fall apart
US /fɔl əˈpɑrt/
UK /fɔ:l əˈpɑ:t/
- Phrasal Verb
- To suffer a nervous breakdown
- To break into pieces; stop functioning
A1Morefigure out
US /ˈfɪɡjɚ aʊt/
UK /ˈfiɡə aut/
- Phrasal Verb
- To understand the behavior of someone
- To think through logically to find a solution
- Verb (Transitive/Intransitive)
- To understand or find an answer to something.
- To find a solution to a problem or understand something.
A1Morefill up
US /fɪl ʌp/
UK /fil ʌp/
- Phrase
- Verb (Transitive/Intransitive)
- To make something full.
- To become full.
A1Morefor example
US
UK
- Phrase
- As an illustration or instance.
for now
US /fɔr naʊ/
UK /fɔ: nau/
- Phrase
- Temporarily; for the present time.
- In the short term; for the immediate future.
A1Morefor the main
US /fɚ ðə meɪn/
UK /fə ðə meɪn/
- other
- Intended for the primary or main person or thing.
C2Morefrom top to bottom
US /frəm tɑp tu ˈbɑtəm/
UK /frəm tɒp tə ˈbɒtəm/
- other
- Completely or thoroughly; in every part.
B1Morego downhill
US
UK
- Phrasal Verb
- To gradually decline in quality, health, or condition.
C2Moregoing on
US /ˈɡoɪŋ ɑn/
UK /ˈgəʊɪŋ ɔn/
- Phrasal Verb
- To continue doing something
- To happen (usually negative)
A1Moregrid
US /ɡrɪd/
UK /ɡrɪd/
- Noun
- Electrical network supplying electricity to area
- Metal structure with bars used to cover a hole
- Transitive Verb
- To mark with a grid.
B2Morehave at
US
UK
- Phrasal Verb
- To attack someone or something.
- To begin doing something with enthusiasm.
A1Morehave to
US /hæv tu/
UK /ˈhæv tə/
- Auxiliary Verb
- Must do
A1Morehomogeneous
US /ˌhoməˈdʒiniəs, -ˈdʒinjəs/
UK /ˌhɒmə'dʒi:nɪəs/
- Adjective
- Being all of the same type
B1Morehydrogen
US /ˈhaɪdrədʒən/
UK /ˈhaɪdrədʒən/
- Uncountable Noun
- Lightest of all chemical elements
B1Morein circles
US
UK
- Phrase
- Moving or going around and around; not progressing.
- To discuss something without making any progress or reaching a conclusion.
A2Morein other words
US
UK
- Phrase
- Stating something in a different way, often to make it clearer or more understandable.
in phase
US /ɪn fez/
UK /in feiz/
- Adjective
- Occurring at the same time or in a synchronized manner; having matching cycles.
- Phrase
- In agreement or harmony; working together effectively.
A1Morein the first place
US
UK
- Phrase
- To begin with; as the first point or consideration.
- From the beginning; initially.
A1Morein with
US /ɪn wɪð/
UK /in wið/
- Phrase
- Fashionable or popular at the moment.
- Having influence or favor with someone.
- Phrasal Verb
- To introduce or bring something new into a system or organization.
A1Moreinstead of
US /ɪnˈstɛd ʌv/
UK /inˈsted ɔv/
- Preposition
- When one thing is replaced by another
- Adverb
- As a substitute or alternative.
A1Moreinteract with
US /ˌɪntɚˈækt wɪð/
UK /ˌɪntərˈækt wið/
- Phrase
- Verb (Transitive/Intransitive)
- To engage in communication or action involving mutual or reciprocal influence.
- To use a computer interface to achieve a specific goal.
A2Moreion
US /ˈaɪən/
UK /'aɪən/
- Noun (Countable/Uncountable)
- Atoms with either a positive or negative charge
B2Morejust kind of
US
UK
- Phrase
- Used to express a feeling or state in a vague or hesitant way.
- Used to indicate something is approximately or generally similar to something else.
A2Morelead to
US /lid tu/
UK /li:d tu:/
- Phrasal Verb
- To result in some action
- Verb (Transitive/Intransitive)
- To have something as a consequence or result.
A1Morelog
US /lɔ:g/
UK /lɒg/
- Verb (Transitive/Intransitive)
- To move a certain distance or speed, as recorded
- To leave a website or computer account
- Noun (Countable/Uncountable)
- Detailed account of events and progress on journey
- Piece of a tree that has fallen or been cut
B1Morelook at
US /lʊk æt/
UK /luk æt/
- Phrasal Verb
- To use your eyes to focus on something
- To focus your eyes on something carefully
A1Morelook for
US /lʊk fɔr/
UK /luk fɔ:/
- Phrasal Verb
- To try to find a thing or person that is lost
- To expect or anticipate something.
A1Moremass
US /mæs/
UK /mæs/
- Noun (Countable/Uncountable)
- Religious ceremony in some Christian churches
- Large amount or number of something
- Transitive Verb
- To gather people or things into a large group
B1Moremolecule
US /ˈmɑlɪˌkjul/
UK /ˈmɒlɪkju:l/
- Noun
- Two or more atoms chemically combined
B2Moremove around
US /muv əˈraʊnd/
UK /mu:v əˈraund/
- Phrasal Verb
- To change position or location; to go from place to place.
- Intransitive Verb
- To spread or circulate (e.g., information, rumors).
move to
US /muv tu/
UK /mu:v tu:/
- Phrasal Verb
- To change the place where you live or work.
- Verb (Transitive/Intransitive)
- To proceed to the next stage or action.
A2Morenegative
US /ˈnɛɡətɪv/
UK /'neɡətɪv/
- Noun
- The opposite to a positive electrical charge
- In grammar, containing words such as 'no' or 'not'
- Adjective
- Being harmful, unwanted or unhelpful
- In mathematics, being less than zero
A2Moreneutral
US /ˈnu:trəl/
UK /ˈnju:trəl/
- Adjective
- Something with pH value of 7
- Having no positive or negative electrical charge
- Noun (Countable/Uncountable)
- Color that is dull and not bright, such as gray
- The rest position for gears in a car or vehicle
B1Morenext to
US /nɛkst tu/
UK /nekst tu:/
- Preposition
- Being located along side another
- In comparison with
- Adverb
- Almost; nearly
A1Morenoble
US /'noʊbl/
UK /'nəʊbl/
- Adjective
- Being admirable and honorable in character
- Concerning or being a member a high social class
- Countable Noun
- Titled peer of the realm e.g. a lord, duke
B1Moreof course
US /ʌv kɔː(r)s/
UK /ɔv kɔː(r)s/
- Adverb
- Sure ; Certainly
- Phrase
- For sure; certainly
A2Moreon fire
US /ɑn faɪr/
UK /ɔn ˈfaiə/
- Adjective
- Very successful or popular
- Burning
A2Moreorbital
US /ˈɔrbɪtl:/
UK /ˈɔ:bɪtl/
- Adjective
- Concerning an orbit
B2Moreoxidation
US /ˌɑksɪˈdeʃən/
UK /ˌɒksɪ'deɪʃn/
- Uncountable Noun
- Process of combining with oxygen
C1Moreoxygen
US /ˈɑksɪdʒən/
UK /'ɒksɪdʒən/
- Uncountable Noun
- A gas in the air that we need to breathe
- Oxygen administered as a medical treatment.
B1Moreph
US /ˈpiˈetʃ/
UK /ˈpi:ˈeɪtʃ/
- Noun
- Acidity or alkalinity value of a solution
B2Morepick it up
US
UK
- Phrasal Verb
- To lift something from a surface.
- To collect something or someone.
A2Morepolar
US /ˈpolɚ/
UK /ˈpəʊlə(r)/
- Adjective
- Concerning the areas near the North or South poles
B1Morepositive
US /ˈpɑzɪtɪv/
UK /ˈpɒzətɪv/
- Adjective
- Showing agreement or support for something
- Being sure about something; knowing the truth
- Noun
- A photograph in which light areas are light and dark areas are dark
A2Moreproton
US /ˈproʊtɑ:n/
UK /ˈprəʊtɒn/
- Countable Noun
- Tiny part of atom with positive electrical charge
B2Morepull apart
US
UK
- Phrasal Verb
- To separate something into pieces, often forcefully.
- To severely criticize something.
A2Moreput together
US /pʊt təˈɡɛðɚ/
UK /put təˈɡeðə/
- Phrasal Verb
- To build or assemble something small, e.g. a toy
- To organize or arrange something.
A1Morequantum
US /ˈkwɑ:ntəm/
UK /ˈkwɒntəm/
- Noun (Countable/Uncountable)
- The smallest unit or amount of energy
B2Morereact
US /riˈækt/
UK /rɪ'ækt/
- Intransitive Verb
- To change when mixing with other chemicals
- To behave or make a change in a particular way
A2Morereaction
US /riˈækʃən/
UK /rɪ'ækʃn/
- Noun
- Bodily response to a drug or something eaten
- Feeling or action in response to something
A2Morerelease
US /rɪ'li:s/
UK /rɪ'li:s/
- Transitive Verb
- To free someone from a responsibility or burden
- To allow a film, music etc. to be sold/distributed
- Noun
- Act of freeing someone from a duty or burden
- Introduction of a new product, film, book, etc.
A2TOEICMoreroll down
US /rol daʊn/
UK /rəul daun/
- Phrasal Verb
- To move downwards by turning over and over.
- To lower a car window.
A1Morerule of thumb
US /rul ʌv θʌm/
UK /ru:l ɔv θʌm/
- Noun (Countable/Uncountable)
- A practical and approximate way of doing or measuring something.
- A broadly accurate guide or principle, based on practice rather than theory.
A1Moresee in
US /si ɪn/
UK /si: in/
- Phrasal Verb
- To accompany someone to the entrance of a building or room.
A1Moreshell
US /ʃɛl/
UK /ʃel/
- Noun (Countable/Uncountable)
- Hard outer cover of an egg, fruit, nut, or seed
- Hard metal container containing a bullet
- Transitive Verb
- To remove the outer covering of peas, nuts etc.
- To fire shells (weapons) at
B1Moresodium
US /ˈsodiəm/
UK /'səʊdɪəm/
- Uncountable Noun
- A soft, white chemical element
B2Moresolid
US /ˈsɑlɪd/
UK /'sɒlɪd/
- Adjective
- Being able to be trusted; reliable
- Substance that is hard or of fixed shape
- Noun
- Something firm or hard; not gas or liquid
A2Morespontaneous
US /spɑnˈteniəs/
UK /spɒnˈteɪniəs/
- Adjective
- Happening on its own, without anyone helping it
B1Morespontaneously
US /spɔnˈtenɪəslɪ/
UK /spɒn'teɪnɪəslɪ/
- Adverb
- In a sudden, unplanned way
B1Moresuch as
US /sʌtʃ æz/
UK /sʌtʃ æz/
- Preposition
- For example; like
A1Moresymbol of
US
UK
- Phrase
- Something that represents or stands for something else, especially an object representing an abstract idea.
- A visible sign of something intangible.
B2Morethanks to
US /θæŋks tu/
UK /θæŋks tu:/
- Preposition
- Because of; as a result of.
A1Morethink back
US /θɪŋk bæk/
UK /θiŋk bæk/
- Phrasal Verb
- To recapture the past
A1Morethink of
US /θɪŋk ʌv/
UK /θiŋk ɔv/
- Phrasal Verb
- To look on as (being something specific); consider
- To consider or remember something.
- Verb (Transitive/Intransitive)
- To imagine or call something to mind
A1Morethrow away
US
UK
- Phrasal Verb
- To fail to take advantage of a good chance
- To put things in the trash
A1Morethumbs up
US
UK
- Noun
- A gesture of approval or agreement, indicated by holding a fist with the thumb extended upwards.
- A positive rating or vote on social media or online platforms.
- Noun (plural)
- Multiple gestures of approval or agreement made by extending the thumbs upward.
A1Moretug
US /tʌɡ/
UK /tʌg/
- Transitive Verb
- To pull (something) hard or suddenly
- Noun
- Pull at something that is hard or sudden
B1Moreturn into
US /tɚn ˈɪntu/
UK /tə:n ˈɪntuː/
- Phrasal Verb
- To change to become something else
- To change your direction to go into a place
A1Moreused up
US
UK
- Phrasal Verb
- To use all of; consume
- Adjective
- Exhausted or depleted.
A1Morevalence
US /'veɪləns/
UK /'veɪləns/
- Noun
- Relative capacity that interact with antigens
C2Morewrite down
US /raɪt daʊn/
UK /rait daun/
- Phrasal Verb
- To record in writing
A1More
