accelerate
US /ækˈsɛləˌret/
UK /əkˈseləreɪt/
- Transitive Verb
- To cause to occur earlier than expected
- To increase the speed or rate of something
B1TOEICMoreaddiction
US /əˈdɪkʃən/
UK /əˈdɪkʃn/
- Noun (Countable/Uncountable)
- Lack of control the overuse of something e.g. drugs
- A compulsive physiological need for a habit-forming substance.
B1TOEICMorearound the world
US /əˈraʊnd ði wɜrld/
UK /əˈraund ðə wɜː(r)ld/
- Phrase
- In or to many countries.
- In various places throughout the world.
A2Moreartificial
US /ˌɑrtəˈfɪʃəl/
UK /ˌɑ:tɪ'fɪʃl/
- Adjective
- Dishonest, to seem fake, not sincere
- (Something) made by people; not created by nature
B1TOEICMoreassemble
US /əˈsɛmbəl/
UK /əˈsembl/
- Transitive Verb
- To put parts together to make a complete unit
- Verb (Transitive/Intransitive)
- To gather together in one place
B1TOEICMoreat scale
US
UK
- Phrase
- In large quantities; with significant reach or impact.
- Widely; extensively; with broad application.
A1Morebacteria
US /bækˈtɪriə/
UK /bæk'tɪərɪə/
- Noun (plural)
- The very small creatures that can cause disease
B2Morebacterial
US /bæk'tɪərɪrl/
UK /bæk'tɪərɪəl/
- Adjective
- Concerning or caused by bacteria
B2Morebasically
US /ˈbesɪkəli,-kli/
UK /ˈbeɪsɪkli/
- Adverb
- Used before you explain something simply, clearly
- In essence; when you consider the most important aspects of something.
A2Moreblow
US /blo/
UK /bləʊ/
- Verb (Transitive/Intransitive)
- To move something using air
- To make air come quickly out of your mouth
- Noun
- Something that causes you difficulty or sadness
- Act of making air come out of your mouth
A2Moreby accident
US /baɪ ˈæksɪdənt/
UK /bai ˈæksidənt/
- Phrase
- Without intending to; unintentionally.
carbon
US /ˈkɑrbən/
UK /'kɑ:bən/
- Uncountable Noun
- Chemical element with an atomic number of 6
B1Morecement
US /sɪˈmɛnt/
UK /sɪ'ment/
- Uncountable Noun
- Building material made from gray powder, water
- Transitive Verb
- To bind or hold together strongly
- To make something more stable or stronger
B1Morecharge
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
A2Moreclock in
US
UK
- Phrasal Verb
- To record the time of one's arrival at work, typically using a time clock.
A1Morecolony
US /ˈkɑləni/
UK /'kɒlənɪ/
- Noun (Countable/Uncountable)
- Group (bees, etc.) that live in the same place
- Country/settlement controlled by another country
B2Moreconflate
US
UK
- Transitive Verb
- To combine two or more things to make a new entity
C2Moredatum
US /ˈdetəm, ˈdætəm, ˈdɑtəm/
UK /ˈdeɪtəm/
- Noun
- Item of factual information
B1Moredementia
US /dɪˈmɛnʃə/
UK /dɪˈmenʃə/
- Uncountable Noun
- Illness characterized by loss of memory
B2Moredevelopment
US /dɪˈvɛləpmənt/
UK /dɪ'veləpmənt/
- Noun (Countable/Uncountable)
- Act or process of growing bigger or more advanced
- A new event related to a previous event
A2TOEICMoredioxide
US /daɪˈɑksaɪd/
UK /daɪˈɒksaɪd/
- Noun
- An oxide containing two oxides per molecule
B2Morediscover
US /dɪˈskʌvɚ/
UK /dɪˈskʌvə(r)/
- Transitive Verb
- To find something new that was not known before
- To learn or find out (something previously unknown or secret).
A2TOEICMoreefficiently
US /ɪˈfɪʃəntlɪ/
UK /ɪ'fɪʃntlɪ/
- Adverb
- In a way that does not create waste
A2Moreenergy
US /ˈɛnədʒi/
UK /'enədʒɪ/
- Noun (Countable/Uncountable)
- Physical or mental strength
- Enthusiasm and determination.
A2Moreextraordinary
US /ɪkˈstrɔ:rdəneri/
UK /ɪkˈstrɔ:dnri/
- Adjective
- Beyond what is ordinary; very unusual; remarkable
- Additional to or different from what is usual or regular.
B1TOEICMorefederal
US /ˈfɛdərəl, ˈfɛdrəl/
UK /'fedərəl/
- Adjective
- Consisting of several united states
- Relating to a system of government in which power is divided between a central authority and constituent political units.
- Proper Noun
- The central banking system of the United States.
B1Morefigure 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.
A1Morefor example
US
UK
- Phrase
- As an illustration or instance.
for sure
US /fɔr ʃʊr/
UK /fɔ: ʃuə/
- Adverb
- Definitely; certainly; without a doubt.
- Used to emphasize a statement.
- Interjection
- An expression of strong agreement or affirmation.
A2Moregerm
US /dʒɚm/
UK /dʒɜ:m/
- Countable Noun
- Tiny organism that can cause sickness and disease
B2Moreimplement
US /ˈɪmpləmənt/
UK /ˈɪmplɪment/
- Transitive Verb
- To start to do something you plan to do
- Noun (Countable/Uncountable)
- A tool
B1TOEICMoreimplementation
US /ˌɪmplɪmənˈteʃən/
UK /ˌɪmplɪmen'teɪʃn/
- Uncountable Noun
- A practical means for accomplishing something
B1TOEICMorein 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.
C1Morein order to
US /ɪn ˈɔrdɚ tu/
UK /in ˈɔ:də tu:/
- Preposition
- For the purpose of; with the aim of.
- Phrase
- In a specific sequence or arrangement.
- With the aim of; for the purpose of.
C1Morein particular
US /ɪn pɚˈtɪkjəlɚ/
UK /in pəˈtikjulə/
- Phrase
- Specifically; especially.
- Detailed or precise.
A1Morein the absence of
US /ɪn ði ˈæbsəns əv/
UK /ɪn ði ˈæbsəns əv/
- other
- When someone or something is not present or available.
B1Morein the world
US /ɪn ði wɜrld/
UK /in ðə wɜː(r)ld/
- Phrase
- Used to emphasize a question expressing surprise, confusion, or disbelief.
- Used to indicate the extent or degree of something, often in a superlative sense.
A1Moreintelligence
US /ɪnˈtɛlədʒəns/
UK /ɪn'telɪdʒəns/
- Uncountable Noun
- Collection of secret information about something
- Ability to learn things or to consider situations
- Adjective
- Of the spying services; acting in secrecy
A2TOEICMoreinvent
US /ɪnˈvɛnt/
UK /ɪnˈvent/
- Transitive Verb
- To create something such as a story or excuse
- To create something useful for the first time
A2TOEICMoreinvention
US /ɪnˈvɛnʃən/
UK /ɪnˈvenʃn/
- Noun (Countable/Uncountable)
- Something new that is different from other things
- Power or ability to create new things
A2TOEICMorelab
US /læb/
UK /læb/
- Noun (Countable/Uncountable)
- Short for 'laboratory'
B1Morelead 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.
A1Morelook at
US /lʊk æt/
UK /luk æt/
- Phrasal Verb
- To use your eyes to focus on something
- To focus your eyes on something carefully
A1Moremicroscope
US /ˈmaɪkrəskoʊp/
UK /ˈmaɪkrəskəʊp/
- Noun
- Scientific device making small things look bigger
B1Morenuclear
US /ˈnukliɚ, ˈnju-/
UK /ˈnju:kliə(r)/
- Adjective
- Concerning or involving the center of an atom
A2Moreobesity
US /oˈbisɪti/
UK /əʊ'bi:sətɪ/
- Uncountable Noun
- State of being so fat it can harm your health
- The state of being far too heavy; corpulence.
B2Moreoperation
US /ˌɑpəˈreʃən/
UK /ˌɒpəˈreɪʃn/
- Noun (Countable/Uncountable)
- Business or company, or its activities
- Functioning; use
A2TOEICMoreother places
US
UK
- Phrase
- Different locations or areas
penicillin
US /ˌpɛnɪˈsɪlɪn/
UK /ˌpenɪ'sɪlɪn/
- Noun
- Medicine that treats infection by killing bacteria
C1Morepharmaceutical
US /ˌfɑ:rməˈsu:tɪkl/
UK /ˌfɑ:məˈsu:tɪkl/
- Adjective
- Concerning the science of drugs and medicines
B2Morepositive side
US
UK
- Noun
- The good or beneficial aspect of something, especially something that is generally considered negative.
- An optimistic or hopeful perspective.
B1Moreprogress
US /ˈprɑɡˌrɛs, -rəs, ˈproˌɡrɛs/
UK /'prəʊɡres/
- Verb (Transitive/Intransitive)
- To move forward or toward a place or goal
- To make progress; develop or improve.
- Uncountable Noun
- Act of moving forward
- The process of improving or developing something over a period of time.
A2TOEICMorerather than
US
UK
- Adverb
- More exactly; more correctly
- Preferably; instead
- Preposition
- Instead of
A1Morescale
US /skel/
UK /skeɪl/
- Noun (Countable/Uncountable)
- Size, level, or amount when compared
- Small hard plates that cover the body of fish
- Verb (Transitive/Intransitive)
- To change the size of but keep the proportions
- To climb something large (e.g. a mountain)
A2TOEICMorescientific
US /ˌsaɪənˈtɪfɪk/
UK /ˌsaɪənˈtɪfɪk/
- Adjective
- Concerning academic study of the physical world
- Systematic and precise, following a methodology.
- Noun
- Relating to or used in science.
A2Moresolar
US /ˈsolɚ/
UK /'səʊlə(r)/
- Adjective
- Concerning the sun, or its heat
B1Morespun
US /spʌn/
UK /spʌn/
- Verb (Transitive/Intransitive)
- To make a ball rotate when throwing it
- To feel dizzy/confused, as in my head is spinning
B1Morethink about
US /θɪŋk əˈbaʊt/
UK /θiŋk əˈbaut/
- Phrasal Verb
- To consider something carefully.
- To remember or call to mind.
A1Moreunder the microscope
US /ˈʌndɚ ðə ˈmaɪkrəˌskoʊp/
UK /ˈʌndə ðə ˈmaɪkrəskəup/
- other
- Being examined very carefully or in great detail.
B2Moreutter
US /ˈʌtɚ/
UK /'ʌtə(r)/
- Transitive Verb
- To make a particular sound; speak
- Adjective
- Being complete or total
B2TOEICMorevaccine
US /vækˈsin,ˈvækˌsin/
UK /'væksi:n/
- Noun (Countable/Uncountable)
- Shot using weak disease cells to stop same disease
- A preparation of weakened or killed microorganisms, or of antigenic proteins derived from them, used to induce protective immunity in animals.
B2Morewarp
US /wɔ:rp/
UK /wɔ:p/
- Noun
- Twist or bend in something normally straight
- Transitive Verb
- To influence someone to become bad/do evil thing
B2Morework out
US /wɚk aʊt/
UK /wə:k aut/
- Phrasal Verb
- To find a way to do something, by thinking
A1More
Vocabulary
- look at: To use your eyes to focus on something
- at scale: In large quantities; with significant reach or impact.
- in the world: Used to emphasize a question expressing surprise, confusion, or disbelief.
- around the world: In or to many countries.
- in particular: Specifically; especially.
- for example: As an illustration or instance.
- by accident: Without intending to; unintentionally.
- figure out: To understand the behavior of someone
- under the microscope: Being examined very carefully or in great detail.
- clock in: To record the time of one's arrival at work, typically using a time clock.
- in order to: For the purpose of; with the aim of.
- in fact: Used to emphasize the truth of a statement, especially one that contrasts with or contradicts something else.
- think about: To consider something carefully.
- work out
- positive side: The good or beneficial aspect of something, especially something that is generally considered negative.
- lead to: To result in some action
- for sure: Definitely; certainly; without a doubt.
- rather than: More exactly; more correctly
- in the absence of: When someone or something is not present or available.
- other places: Different locations or areas
- extraordinary: Beyond what is ordinary; very unusual; remarkable
- progress: To move forward or toward a place or goal
- basically: Used before you explain something simply, clearly
- obesity: State of being so fat it can harm your health
- scale: Size, level, or amount when compared
- artificial: Dishonest, to seem fake, not sincere
- intelligence: Collection of secret information about something
- bacteria: The very small creatures that can cause disease
- implement: To start to do something you plan to do
- dementia: Illness characterized by loss of memory
- addiction: Lack of control the overuse of something e.g. drugs
- federal: Consisting of several united states
- charge: To run quickly toward someone to attack them
- vaccine: Shot using weak disease cells to stop same disease
- scientific: Concerning academic study of the physical world
- create: To make, cause, or bring into existence
- blow: To move something using air
- accelerate: To cause to occur earlier than expected
- project: To predict what will happen in the future
- energy: Physical or mental strength
- utter: To make a particular sound; speak
- development: Act or process of growing bigger or more advanced
- cement: Building material made from gray powder, water
- dioxide: An oxide containing two oxides per molecule
- invention: Something new that is different from other things
- colony: Group (bees, etc.) that live in the same place
- assemble: To put parts together to make a complete unit
- carbon: Chemical element with an atomic number of 6
- century: Period of 100 years
- important: Having power or authority
- build: Your physical shape; physique
- germ: Tiny organism that can cause sickness and disease
- government: Group of people and system that rule a nation
- program: To make someone act or think in a certain way
- solar: Concerning the sun, or its heat
- operation: Business or company, or its activities
- efficiently: In a way that does not create waste
- pull: Act of breathing in smoke, as from a pipe
- nuclear: Concerning or involving the center of an atom
- land: Region or country
- invent: To create something such as a story or excuse
- grow: To get bigger and more mature; make plants do this
- discover: To find something new that was not known before
- pharmaceutical: Concerning the science of drugs and medicines
- world: All the humans, events, activities on the earth
- implementation: A practical means for accomplishing something
- side: To decide to agree with one point, not the other
- lesson: Something done to learn or teach something; class
- country: An area of land that is controlled by a government
- lose: To be unable to keep in check or control something
- datum: Item of factual information
- spun: To make a ball rotate when throwing it
- lab: Short for 'laboratory'
- warp: Twist or bend in something normally straight
- bacterial: Concerning or caused by bacteria
- microscope: Scientific device making small things look bigger
- conflate: To combine two or more things to make a new entity
- penicillin: Medicine that treats infection by killing bacteria
Get the full experience in the app
Learn anywhere with detailed sentence and usage analysis
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.
Get the full experience in the app
Look up words anytime with pronunciation, part of speech, and usage
brave
US/brev/
UK/breɪv/
adj.Brave
v.t.To bravely face
A2 Elementary
Get the full experience in the app
Practice speaking anytime and get instant pronunciation feedback
Try this speaking exercise.
Try practicing with this sentence.
80
The laboratory accident that saved 500 million lives | Derek Thompson
0
林宜悉 posted on 2025/07/18Did you know a lab accident could save millions of lives? This fascinating talk dives into the incredible story of penicillin and how scaling up innovations, like Operation Warp Speed, is key to real-world impact. You'll pick up advanced vocabulary and gain insights into historical breakthroughs and modern policy!
Learn this video on the APP!
The VoiceTube App has more in-depth practice for videos!