amino
US /ə'miːnəʊ/
UK /ə'miːnəʊ/
- Noun
- Of some substances that form proteins
C2Moreaudible
US /ˈɔdəbəl/
UK /ˈɔ:dəbl/
- Adjective
- Capable of being heard; loud enough to be heard
B2Morebicarbonate
US /ˌbaɪˈkɑ:rbənət/
UK /ˌbaɪˈkɑ:bənət/
- Noun
- Salt of carbonic acid (containing the anion HCO3)
C1Morebottom
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.
A2TOEICMorecharge
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
A2Morechemistry
US /ˈkɛmɪstri/
UK /'kemɪstrɪ/
- Uncountable Noun
- The study of the structure of substances
B1Morecholesterol
US /kəˈlestərɔ:l/
UK /kəˈlestərɒl/
- Uncountable Noun
- Substance in the body that may cause heart disease
- Noun
- A test to measure the amount of cholesterol in your blood.
B2Morecompound
US /kɑmˈpaUnd/
UK /'kɒmpaʊnd/
- Noun (Countable/Uncountable)
- Series of buildings that are walled or fenced off
- Chemical made up of several others
- Transitive Verb
- To pay interest on a loan including the interest
- To make something from various parts or components
B1Morecontamination
US /kənˌtæməˈneʃən/
UK /kənˌtæmɪ'neɪʃən/
- Uncountable Noun
- Being impure because of a harmful agent
B2Moredense
US /dɛns/
UK /dens/
- Adjective
- Very thick and difficult to see, get through
- Hard to understand
B1TOEICMoredissolve
US /dɪˈzɑ:lv/
UK /dɪˈzɒlv/
- Verb (Transitive/Intransitive)
- To cause something to end
- To dismiss, e.g. a law-making body
B2Moredown with
US /daʊn wɪð/
UK /daun wið/
- Adjective
- Suffering from an illness.
- Agreeable to; in favor of.
- Interjection
- An expression of opposition to something.
A1Moredrain
US /dren/
UK /dreɪn/
- Noun (Countable/Uncountable)
- Hole or pipe that water, waste etc. flows into
- Something that depletes resources or energy.
- Transitive Verb
- To empty or remove liquid from
- To use up the energy/ money/power of something
B1Moreease
US /iz/
UK /i:z/
- Verb (Transitive/Intransitive)
- To make something less difficult, tight, stressed
- To move slowly and purposely to get in small space
- Uncountable Noun
- State of being comfortable or relaxed
A2Moreether
US /ˈiθɚ/
UK /ˈi:θə(r)/
- Uncountable Noun
- Formerly, liquid inducing sleep before dental work
C1Moreevaporate
US /ɪˈvæpəˌret/
UK /ɪˈvæpəreɪt/
- Intransitive Verb
- To pass off or away; to disappear
- Transitive Verb
- To change from a liquid into a gaseous state
B2Morefilter
US /ˈfɪltɚ/
UK /'fɪltə(r)/
- Noun (Countable/Uncountable)
- Device to remove certain types of light, sound
- Device to remove unwanted things from liquid, gas
- Transitive Verb
- To remove certain types of light, sound
- To remove unwanted substances from a liquid or gas
B1Moreflask
US /flæsk/
UK /flɑ:sk/
- Countable Noun
- Narrow-necked drink container
C1Moreformal
US / ˈfɔrməl/
UK /'fɔ:ml/
- Adjective
- Observing rules and procedures strictly
- Behaving well, politely; wearing your best clothes
A2TOEICMorefunnel
US /ˈfʌnəl/
UK /ˈfʌnl/
- Transitive Verb
- to send something directly and intentionally.
- To move a thing through a narrow opening or space
- Noun (Countable/Uncountable)
- Cone-shaped tool for pouring liquid into container
- Large metal chimney on ships
B2TOEICMorehave to
US /hæv tu/
UK /ˈhæv tə/
- Auxiliary Verb
- Must do
A1Morehook
US /hʊk/
UK /hʊk/
- Noun (Countable/Uncountable)
- Bent tool used to catch fish or to hang things on
- The start of a story which catches your interest
- Transitive Verb
- To make a bent or curved shape
- To catch your interest completely
B1Morehook it up
US
UK
- Phrasal Verb
- To connect a piece of equipment to a power supply or to another piece of equipment
- To meet or begin a relationship with someone
B2Moreimmerse
US /ɪˈmɜ:rs/
UK /ɪˈmɜ:s/
- Transitive Verb
- To put something in liquid until it is covered
- Verb (Transitive/Intransitive)
- To become completely involved in something
B1Morein fact
US /ɪn fækt/
UK /in fækt/
- Adverb
- Used to emphasize the truth of a statement, especially one that contrasts with or contradicts something else.
- Used to introduce a more detailed or surprising piece of information.
- Phrase
- Used to emphasize the truth of a statement, especially one that is surprising or contrary to what might be expected.
C1Moreinteract 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
B2Morelabel
US /ˈlebəl/
UK /'leɪbl/
- Noun (Countable/Uncountable)
- A (luxury) brand owned by a company
- A word or term used to describe a person, thing
- Transitive Verb
- To use a term to describe, often negatively
- To attach material to identify something
A2Morelaboratory
US /ˈlæbrəˌtɔri, -ˌtori/
UK /lə'bɒrətrɪ/
- Noun (Countable/Uncountable)
- A place to do scientific experiments
- A place where tests are done for medical diagnosis.
B1Morelayer
US /ˈleɚ/
UK /ˈleiə/
- Noun (Countable/Uncountable)
- One of several sheets of a material or object
- A covering of something spread over a surface.
- Transitive Verb
- To put things one on top of another
B1TOEICMorelook at
US /lʊk æt/
UK /luk æt/
- Phrasal Verb
- To use your eyes to focus on something
- To focus your eyes on something carefully
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
B1Moremixture
US /ˈmɪkstʃɚ/
UK /ˈmɪkstʃə(r)/
- Noun (Countable/Uncountable)
- Something made by combining two or more things
B1Moreneutralize
US /ˈnu:trəlaɪz/
UK /ˈnju:trəlaɪz/
- Transitive Verb
- To remove or take away a threat
B2Morenitrogen
US /ˈnaɪtrədʒən/
UK /ˈnaɪtrədʒən/
- Uncountable Noun
- A colorless chemical element without a smell
B2Moreon the other hand
US
UK
- Phrase
- Considering a different aspect of the matter; alternatively.
A1Moreorganic
US /ɔrˈɡænɪk/
UK /ɔ:ˈgænɪk/
- Adjective
- Developing naturally and without a set structure
- Concerning food made with few or no chemicals
B1Moreover to
US
UK
- Preposition
- Used to hand over to someone else to speak
- The responsibility is now yours
pass through
US /pæs θru/
UK /pɑ:s θru:/
- Phrasal Verb
- To experience something, often unpleasant or difficult.
- To go through something; to move from one side to the other of something.
A2Morephysical
US /ˈfɪzɪkəl/
UK /ˈfɪzɪkl/
- Countable Noun
- Health check at the doctors' or hospital
- Adjective
- Concerning the body of a person
- Concerning things that can be seen or touched
A2Morepick it up
US
UK
- Phrasal Verb
- To lift something from a surface.
- To collect something or someone.
A2Morepour
US /pɔr, por/
UK /pɔ:(r)/
- Verb (Transitive/Intransitive)
- To fill a person's glass or cup with a drink
- To make something flow in a steady stream
A2Moreput aside
US
UK
- Phrasal Verb
- To save money regularly.
- To temporarily ignore or forget something, such as a disagreement or problem.
A1Morereach
US /ritʃ/
UK /ri:tʃ/
- Verb (Transitive/Intransitive)
- To come to or arrive at a goal or destination
- To be long enough to get to a certain place
- Uncountable Noun
- Power or control someone has over something
A2TOEICMorereact
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
A2Moreremain
US /rɪˈmen/
UK /rɪˈmeɪn/
- Intransitive Verb
- To be left behind; to continue to exist
- To stay in a place when other people have gone
A2TOEICMoreresidue
US /ˈrezɪdu:/
UK /ˈrezɪdju:/
- Noun (Countable/Uncountable)
- Left over part after most is taken away
B2Moreseparate
US /'sepəreɪt/
UK /'sepəreɪt/
- Adjective
- Being different from or unrelated to another
- Not connected; different.
- Transitive Verb
- To divide two things by being in between them
- To move things away from each other
A2TOEICMoreset up
US /sɛt ʌp/
UK /set ʌp/
- Phrasal Verb
- To make arrangements for something; establish
- Verb (Transitive/Intransitive)
- To arrange or prepare something for use.
- To start a business, organization, etc.
A1Moresodium
US /ˈsodiəm/
UK /'səʊdɪəm/
- Uncountable Noun
- A soft, white chemical element
B2Moresoluble
US /ˈsɑ:ljəbl/
UK /ˈsɒljəbl/
- Adjective
- Able to dissolve or be dissolved in a liquid
- Able to be solved
B2Moresolution
US /səˈluʃən/
UK /səˈlu:ʃn/
- Noun (Countable/Uncountable)
- Mix of a liquid and a solid or a gas
- Way to solve or deal with a problem
A2Moresteroid
US /ˈstɪrˌɔɪd, ˈstɛr-/
UK /ˈsterɔɪd/
- Noun
- Drug making muscles bigger and giving more energy
B2Moresuck up
US /sʌk ʌp/
UK /sʌk ʌp/
- Phrasal Verb
- To try to gain favor by flattering or fawning.
- To absorb or soak up a liquid.
C2Moretechnique
US /tɛkˈnik/
UK /tekˈni:k/
- Noun (Countable/Uncountable)
- Way of doing by using special knowledge or skill
- The skill or ability to do something well.
A2TOEICMoretoss
US /tɔ:s/
UK /tɒs/
- Transitive Verb
- To throw something into the air, e.g. casually
- To mix ingredients lightly.
- Intransitive Verb
- To move about restlessly; to writhe or fidget.
- To be thrown about violently.
B1Moretricky
US /ˈtrɪki/
UK /'trɪkɪ/
- Adjective
- Difficult, so needing skill to do or deal with
- Likely to use tricks; dishonest or deceptive
A2Moreubiquitous
US /juˈbɪkwɪtəs/
UK /ju:ˈbɪkwɪtəs/
- Adjective
- Found everywhere; found in many places
C2TOEICMoreundergo
US /ˌʌndərˈgoʊ/
UK /ˌʌndəˈgəʊ/
- Verb (Transitive/Intransitive)
- To experience or endure something (bad)
- To experience a change or transformation.
B1Morevacuum
US /ˈvækjuəm, -jum, -jəm/
UK /'vækjʊəm/
- Noun (Countable/Uncountable)
- Space with absolutely no air in it
- Cleaning machine with engine that sucks up dirt
- Transitive Verb
- To clean (a floor) using a sucking machine
- To seal something in a vacuum.
B1Morevent
US /vɛnt/
UK /vent/
- Verb (Transitive/Intransitive)
- To express anger or grievance loudly/with feeling
- Noun (Countable/Uncountable)
- Opening allowing exit/entry of gas, steam etc.
- Expression of feelings often of anger
B2Morevolatile
US /ˈvɑ:lətl/
UK /ˈvɒlətaɪl/
- Adjective
- Able to easily become a gas at a low temperature
- Unstable and likely to change suddenly/extremely
B2TOEICMorewait for
US /wet fɔr/
UK /weit fɔ:/
- Phrasal Verb
- To wait until someone comes, or something happens
A1Morewith just
US
UK
- Phrase
- Using only; with no more than.
- Barely; by a narrow margin.
A2More
Vocabulary
- have to: Must do
- pass through: To experience something, often unpleasant or difficult.
- with just: Using only; with no more than.
- in fact: Used to emphasize the truth of a statement, especially one that contrasts with or contradicts something else.
- on the other hand : Considering a different aspect of the matter; alternatively.
- look at: To use your eyes to focus on something
- over to: Used to hand over to someone else to speak
- pick it up: To lift something from a surface.
- down with: Suffering from an illness.
- interact with
- put aside: To save money regularly.
- suck up: To try to gain favor by flattering or fawning.
- hook it up: To connect a piece of equipment to a power supply or to another piece of equipment
- set up
- wait for: To wait until someone comes, or something happens
- physical: Health check at the doctors' or hospital
- technique: Way of doing by using special knowledge or skill
- tricky: Difficult, so needing skill to do or deal with
- cholesterol: Substance in the body that may cause heart disease
- separate: Being different from or unrelated to another
- ubiquitous: Found everywhere; found in many places
- compound: Series of buildings that are walled or fenced off
- drain: Hole or pipe that water, waste etc. flows into
- reach: To come to or arrive at a goal or destination
- volatile: Able to easily become a gas at a low temperature
- filter: Device to remove certain types of light, sound
- similar: Nearly the same; alike
- remain: To be left behind; to continue to exist
- toss: To throw something into the air, e.g. casually
- ease: To make something less difficult, tight, stressed
- perform: To carry out an action well or successfully
- dense: Very thick and difficult to see, get through
- charge: To run quickly toward someone to attack them
- reaction: Bodily response to a drug or something eaten
- pour: To fill a person's glass or cup with a drink
- mass: Religious ceremony in some Christian churches
- empty: Containing nothing; with no contents
- immerse: To put something in liquid until it is covered
- organic: Developing naturally and without a set structure
- vacuum: Space with absolutely no air in it
- dissolve: To cause something to end
- layer: One of several sheets of a material or object
- solution: Mix of a liquid and a solid or a gas
- formal: Observing rules and procedures strictly
- leave: To go away from; depart
- suggest: To mention something that could be done; propose
- sodium: A soft, white chemical element
- react: To change when mixing with other chemicals
- bottom: The part of your body you sit on
- evaporate: To pass off or away; to disappear
- learn: To get knowledge or skills by study or experience
- label: A (luxury) brand owned by a company
- chemistry: The study of the structure of substances
- audible: Capable of being heard; loud enough to be heard
- residue: Left over part after most is taken away
- mixture: Something made by combining two or more things
- hook: Bent tool used to catch fish or to hang things on
- undergo: To experience or endure something (bad)
- basic: At the most important or easiest (beginner) level
- laboratory: A place to do scientific experiments
- step: Movement done as part of a particular dance
- vent: To express anger or grievance loudly/with feeling
- nitrogen: A colorless chemical element without a smell
- contamination: Being impure because of a harmful agent
- understand: To know the meaning of language, what someone says
- check: Paper showing how much you owe at a restaurant
- type: Printed letters or blocks used for printing them
- funnel: to send something directly and intentionally.
- amino: Of some substances that form proteins
- neutralize: To remove or take away a threat
- add: To include as well
- strong: (Of tea or beer) dark or thick
- put: To move or place a thing in a particular position
- watch: To keep in check, manage, or control something
- soluble: Able to dissolve or be dissolved in a liquid
- steroid: Drug making muscles bigger and giving more energy
- bicarbonate: Salt of carbonic acid (containing the anion HCO3)
- ion: Atoms with either a positive or negative charge
- flask: Narrow-necked drink container
- ether: Formerly, liquid inducing sleep before dental work
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01:03
She took a brave step forward, leaving behind her comfort zone to chase her dreams.
Vocabulary
- brave
adj. Having courage
- comfort zone
phr. A familiar situation where one feels safe
Explanation
a brave step is a noun phrase, where brave is an adjective modifying the noun step, meaning "a courageous step".
forward is an adverb modifying step, meaning "ahead".
The whole phrase serves as the object, answering the "what" of took (verb) — she took a brave step forward.
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brave
US/brev/
UK/breɪv/
adj.Brave
v.t.To bravely face
A2 Elementary
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Ken Lee posted on 2026/08/25Ever wondered how to separate mixed substances? This video breaks down the science of extraction, showing you how to use properties like solubility to separate mixtures like salt and cholesterol, or even more complex combinations! You'll pick up key terms and practical techniques used in chemistry labs.
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