Vocabulary

  • have to: Must do
  • going on: To continue doing something
  • 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.
  • put together: To build or assemble something small, e.g. a toy
  • go back to: To return to a starting point
  • along with: In addition to; together with.
  • on board: Being on a ship, plane, or other vehicle
  • the whole story: The complete and unabridged account of something.
  • in particular: Specifically; especially.
  • look at: To use your eyes to focus on something
  • with respect to: In relation to; regarding.
  • think of: To look on as (being something specific); consider
  • in different ways: Using various methods or approaches; with variety.
  • into space: Toward or entering the region beyond Earth's atmosphere.
  • instead of: When one thing is replaced by another
  • in school: Attending an educational institution.
  • based on: To use something as the foundation or starting point for something else.
  • in part: To some extent; partially.
  • see in: To accompany someone to the entrance of a building or room.
  • in terms of
  • to the moon: Increasing quickly and significantly, often in value or excitement.
  • in on: To be involved in a secret or plan.
  • come together: To assemble or unite; to start working together.
  • together with: In addition to; along with.
  • on the ladder: Progressing or climbing toward success or promotion.
  • of course: Sure ; Certainly
  • come about: To turn a boat around; (of boat) to turn around
  • for example: As an illustration or instance.
  • fiddle with: To make small movements or adjustments to something, often nervously or restlessly.
  • rather than: More exactly; more correctly
  • do in: To make completely tired out and exhausted
  • in with: Fashionable or popular at the moment.
  • due to: Because of; owing to
  • ultimately: Done or considered as the final and most important
  • bunch: A group of things of the same kind
  • context: Set of facts surrounding a person or event
  • figure: To appear in a game, play or event
  • constant: Happening frequently or without pause
  • progress: To move forward or toward a place or goal
  • realize: To become aware of or understand mentally
  • force: Group of persons trained for military action; army
  • treat: To pay for the food or enjoyment of someone else
  • general: Widespread, normal or usual
  • brilliant: Having a great amount of intelligence or talent
  • intuition: Natural ability to guess or feel things
  • rid: To cause to no longer have (pest, problem)
  • imagine: To think creatively about; form mental picture of
  • separate: Being different from or unrelated to another
  • reality: What is true, as opposed to what is imagined
  • feature: Special report in a magazine or paper
  • existence: State of being present, alive or real
  • exist: To be present, alive or real
  • field: Area of study, such as physics or biology
  • theory: Ideas or principles that explain facts or events
  • gravity: (Of a situation) extreme seriousness
  • predict: To guess or estimate what will or might happen
  • interaction: Process of people or things affecting each other
  • universe: All of space that contains planets and stars
  • explain: To make clear or easy to understand by describing
  • messy: Being complex or difficult to fix
  • evolution: Theory that living things change over time
  • accomplishment: Something you succeed in after hard work
  • equation: Mathematical statement showing things to be equal
  • absolute: Complete; total; pure; not limited in any way
  • layer: One of several sheets of a material or object
  • detect: To discover or identify the presence of something
  • framework: Skeleton structure of a building or construction
  • velocity: Speed in a given direction
  • lot: What happens to a person in life from chance; fate
  • depend: Be controlled or determined by (someone/something)
  • decay: To be slowly destroyed by natural processes; rot
  • fact: Something that is known or proved to be true
  • act: To behave in a certain way
  • prefer: To like something better than something else
  • chemistry: The study of the structure of substances
  • quantum: The smallest unit or amount of energy
  • symmetry: Having parts that are exactly the same
  • great: Very good; better than before
  • space: Empty area kept for a specific reason, like a car
  • gravitational: Concerning the force of gravity
  • dimensional: Concerning how many planes an object exists in
  • adept: Being highly skilled in some activity
  • geometry: Mathematical study of shapes, surfaces, and space
  • astronomer: Scientist studying stars and other bodies in space
  • physicist: Person who studies and works in physics
  • classical: Concerning the culture of ancient Greece or Rome
  • electron: A negatively charged particle
  • inverse: Being the opposite of something else
  • relativity: Einstein theory about time, space and position
  • magnetism: Property causing metal objects to attract or repel
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  • not found vocabularyNo vocabulary matches your filters
    • absolute

      US /ˈæbsəˌlut/

      UK /ˈæbsəlu:t/

      • Adjective
      • Complete; total; pure; not limited in any way
      • Not capable of being doubted or questioned; certain.
      • Noun (Countable/Uncountable)
      • Something that is complete, total, pure, certain
      • (in philosophy) a concept of an ultimate, unconditional reality
      A2
      More
    • accomplishment

      US /əˈkɑmplɪʃmənt/

      UK /əˈkʌmplɪʃmənt/

      • Noun (Countable/Uncountable)
      • Something you succeed in after hard work
      • A skill or special ability.
      B1TOEIC
      More
    • adept

      US /əˈdɛpt/

      UK /əˈdept/

      • Adjective
      • Being highly skilled in some activity
      B2TOEIC
      More
    • along 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.
      A2
      More
    • astronomer

      US /əˈstrɑ:nəmə(r)/

      UK /əˈstrɒnəmə(r)/

      • Countable Noun
      • Scientist studying stars and other bodies in space
      B2
      More
    • based 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.
      A1
      More
    • brilliant

      US /ˈbrɪljənt/

      UK /'brɪlɪənt/

      • Adjective
      • Having a great amount of intelligence or talent
      • Being very bright, like a diamond; shining
      • Noun
      • A diamond or other gem cut in a particular form with many facets to have exceptional brilliance.
      A2
      More
    • bunch

      US /bʌntʃ/

      UK /bʌntʃ/

      • Noun (Countable/Uncountable)
      • A group of things of the same kind
      • A group of people.
      • Transitive Verb
      • To group people or things closely together
      B1
      More
    • chemistry

      US /ˈkɛmɪstri/

      UK /'kemɪstrɪ/

      • Uncountable Noun
      • The study of the structure of substances
      B1
      More
    • classical

      US /ˈklæsɪkəl/

      UK /ˈklæsɪkl/

      • Adjective
      • Concerning the culture of ancient Greece or Rome
      • (Of music) serious and traditional in form
      B1
      More
    • come about

      US /kʌm əˈbaʊt/

      UK /kʌm əˈbaut/

      • Phrasal Verb
      • To turn a boat around; (of boat) to turn around
      • To take place; happen
      A1
      More
    • come together

      US /kʌm təˈɡɛðɚ/

      UK /kʌm təˈɡeðə/

      • Phrasal Verb
      • To assemble or unite; to start working together.
      • To form a close relationship or bond.
      A1
      More
    • constant

      US /ˈkɑnstənt/

      UK /'kɒnstənt/

      • Adjective
      • Happening frequently or without pause
      • Remaining the same over time or not changing.
      • Noun
      • Thing that happens always or at a regular rate
      • A physical quantity that is believed to have a fixed value and is used in calculations.
      A2TOEIC
      More
    • context

      US /ˈkɑnˌtɛkst/

      UK /ˈkɒntekst/

      • Noun (Countable/Uncountable)
      • Set of facts surrounding a person or event
      • The circumstances that form the setting for an event, statement, or idea, and in terms of which it can be fully understood and assessed.
      A2
      More
    • decay

      US /dɪˈke/

      UK /dɪˈkeɪ/

      • Intransitive Verb
      • To be slowly destroyed by natural processes; rot
      • To lose health or strength
      • Uncountable Noun
      • Slow loss of physical or mental health
      B1
      More
    • depend

      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.
      B1TOEIC
      More
    • detect

      US /dɪˈtɛkt/

      UK /dɪˈtekt/

      • Transitive Verb
      • To discover or identify the presence of something
      A2TOEIC
      More
    • dimensional

      US /dɪˈmɛnʃənl:/

      UK /dɪ'menʃənəl/

      • Adjective
      • Concerning how many planes an object exists in
      B1
      More
    • do in

      US

      UK

      • Phrasal Verb
      • To make completely tired out and exhausted
      • To destroy or cause damage to someone
      A1
      More
    • due to

      US /du tu/

      UK /dju: tu:/

      • Preposition
      • Because of; owing to
      • Adjective
      • Attributable to; caused by.
      A1
      More
    • electron

      US /ɪˈlektrɑ:n/

      UK /ɪˈlektrɒn/

      • Countable Noun
      • A negatively charged particle
      B2
      More
    • equation

      US /ɪˈkweʒən, -ʃən/

      UK /ɪˈkweɪʒn/

      • Noun (Countable/Uncountable)
      • Mathematical statement showing things to be equal
      • Complex set of different facts, ideas or issues
      B1
      More
    • evolution

      US /ˌɛvəˈluʃən, ˌivə-/

      UK /ˌi:və'lu:ʃn/

      • Uncountable Noun
      • Theory that living things change over time
      • Process by which something develops over time
      B1
      More
    • existence

      US /ɪɡˈzɪstəns/

      UK /ɪɡ'zɪstəns/

      • Uncountable Noun
      • State of being present, alive or real
      • A way of living; the manner in which someone lives.
      A2TOEIC
      More
    • feature

      US /ˈfitʃɚ/

      UK /'fi:tʃə(r)/

      • Noun (Countable/Uncountable)
      • Special report in a magazine or paper
      • Distinctive or important point of something
      • Transitive Verb
      • To highlight or give special importance to
      • To give prominence to; to present or promote as a special or important item.
      A2TOEIC
      More
    • fiddle with

      US /ˈfɪdl wɪð/

      UK /ˈfidl wið/

      • Phrasal Verb
      • To make small movements or adjustments to something, often nervously or restlessly.
      • To tamper with or interfere with something, often in a way that is not authorized or skillful.
      More
    • for example

      US

      UK

      • Phrase
      • As an illustration or instance.
      More
    • framework

      US /ˈfreɪmwɜ:rk/

      UK /ˈfreɪmwɜ:k/

      • Noun
      • Skeleton structure of a building or construction
      • Basic structure of something
      B1TOEIC
      More
    • geometry

      US /dʒiˈɑ:mətri/

      UK /dʒiˈɒmətri/

      • Uncountable Noun
      • Mathematical study of shapes, surfaces, and space
      • Mathematical shape of something
      B2
      More
    • go back to

      US /ɡo bæk tu/

      UK /ɡəu bæk tu:/

      • Phrasal Verb
      • To return to a starting point
      A1
      More
    • going on

      US /ˈɡoɪŋ ɑn/

      UK /ˈgəʊɪŋ ɔn/

      • Phrasal Verb
      • To continue doing something
      • To happen (usually negative)
      A1
      More
    • gravitational

      US /ˌɡrævɪˈteɪʃənl/

      UK /ˌgrævɪˈteɪʃənl/

      • Adjective
      • Concerning the force of gravity
      C1
      More
    • gravity

      US /ˈɡrævɪti/

      UK /ˈgrævəti/

      • Uncountable Noun
      • (Of a situation) extreme seriousness
      • Force making things fall towards the ground
      B1TOEIC
      More
    • have to

      US /hæv tu/

      UK /ˈhæv tə/

      • Auxiliary Verb
      • Must do
      A1
      More
    • in different ways

      US

      UK

      • Phrase
      • Using various methods or approaches; with variety.
      • In varying manners or styles; not uniformly.
      A1
      More
    • in 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.
      C1
      More
    • in on

      US

      UK

      • Phrase
      • To be involved in a secret or plan.
      • To be aware of something that is secret or not generally known.
      A1
      More
    • in part

      US /ɪn pɑrt/

      UK /in pɑ:t/

      • Adverb
      • To some extent; partially.
      A1
      More
    • in particular

      US /ɪn pɚˈtɪkjəlɚ/

      UK /in pəˈtikjulə/

      • Phrase
      • Specifically; especially.
      • Detailed or precise.
      A1
      More
    • in school

      US /ɪn skul/

      UK /ɪn sku:l/

      • other
      • Attending an educational institution.
      A1
      More
    • in terms of

      US

      UK

      • Phrase
      • With regard to; concerning a particular aspect.
      A1
      More
    • in 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.
      A1
      More
    • instead of

      US /ɪnˈstɛd ʌv/

      UK /inˈsted ɔv/

      • Preposition
      • When one thing is replaced by another
      • Adverb
      • As a substitute or alternative.
      A1
      More
    • interaction

      US /ˌɪntɚˈækʃən/

      UK /ˌɪntər'ækʃn/

      • Noun (Countable/Uncountable)
      • Process of people or things affecting each other
      • The activity of talking to other people, working together etc
      A2
      More
    • into space

      US

      UK

      • Phrase
      • Toward or entering the region beyond Earth's atmosphere.
      • Figuratively, entering a realm of imagination or abstraction.
      A1
      More
    • intuition

      US /ˌɪntuˈɪʃən, -tju-/

      UK /ˌɪntjuˈɪʃn/

      • Noun (Countable/Uncountable)
      • Natural ability to guess or feel things
      B2
      More
    • inverse

      US / ˈɪnˌvə:s/

      UK /ɪnˈvɜ:s /

      • Adjective
      • Being the opposite of something else
      • Noun
      • Thing that is the complete opposite of another
      B2
      More
    • layer

      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
      B1TOEIC
      More
    • look at

      US /lʊk æt/

      UK /luk æt/

      • Phrasal Verb
      • To use your eyes to focus on something
      • To focus your eyes on something carefully
      A1
      More
    • magnetism

      US /ˈmæɡnɪˌtɪzəm/

      UK /ˈmægnətɪzəm/

      • Uncountable Noun
      • Property causing metal objects to attract or repel
      • Quality that make someone attractive or appealing
      B2
      More
    • messy

      US /ˈmɛsi/

      UK /'mesɪ/

      • Adjective
      • Being complex or difficult to fix
      • Being untidy or dirty
      A2
      More
    • of course

      US /ʌv kɔː(r)s/

      UK /ɔv kɔː(r)s/

      • Adverb
      • Sure ; Certainly
      • Phrase
      • For sure; certainly
      A2
      More
    • on board

      US /ɑn bɔrd/

      UK /ɔn bɔ:d/

      • Phrase
      • Being on a ship, plane, or other vehicle
      • Adverb
      • On or in a ship, aircraft, train, or other vehicle
      A1
      More
    • on the ladder

      US /ɑn ðə ˈlædɚ/

      UK /ɒn ðə ˈlædə/

      • other
      • Progressing or climbing toward success or promotion.
      A2
      More
    • physicist

      US /ˈfɪzɪsɪst/

      UK /ˈfɪzɪsɪst/

      • Noun
      • Person who studies and works in physics
      B2
      More
    • predict

      US /prɪˈdɪkt/

      UK /prɪ'dɪkt/

      • Transitive Verb
      • To guess or estimate what will or might happen
      A2TOEIC
      More
    • progress

      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.
      A2TOEIC
      More
    • put together

      US /pʊt təˈɡɛðɚ/

      UK /put təˈɡeðə/

      • Phrasal Verb
      • To build or assemble something small, e.g. a toy
      • To organize or arrange something.
      A1
      More
    • quantum

      US /ˈkwɑ:ntəm/

      UK /ˈkwɒntəm/

      • Noun (Countable/Uncountable)
      • The smallest unit or amount of energy
      B2
      More
    • rather than

      US

      UK

      • Adverb
      • More exactly; more correctly
      • Preferably; instead
      • Preposition
      • Instead of
      A1
      More
    • reality

      US /riˈælɪti/

      UK /rɪ'ælətɪ/

      • Noun (Countable/Uncountable)
      • What is true, as opposed to what is imagined
      • The state of things as they actually exist, rather than as they may appear or might be imagined.
      A2
      More
    • relativity

      US /ˌrɛləˈtɪvɪti/

      UK /ˌreləˈtɪvəti/

      • Uncountable Noun
      • Einstein theory about time, space and position
      • The state of being relative; dependence on a frame of reference.
      C2
      More
    • rid

      US /rɪd/

      UK /rɪd/

      • Transitive Verb
      • To cause to no longer have (pest, problem)
      • Adjective
      • Freed or delivered from something.
      A2
      More
    • see in

      US /si ɪn/

      UK /si: in/

      • Phrasal Verb
      • To accompany someone to the entrance of a building or room.
      A1
      More
    • separate

      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
      A2TOEIC
      More
    • symmetry

      US /ˈsɪmɪtri/

      UK /ˈsɪmətri/

      • Uncountable Noun
      • Having parts that are exactly the same
      B2TOEIC
      More
    • the whole story

      US

      UK

      • Phrase
      • The complete and unabridged account of something.
      • The complete truth about a situation, including all the details.
      A2
      More
    • theory

      US /ˈθiəri, ˈθɪri/

      UK /ˈθiəri/

      • Noun (Countable/Uncountable)
      • Ideas or principles that explain facts or events
      • An idea or belief about something
      A2TOEIC
      More
    • think about

      US /θɪŋk əˈbaʊt/

      UK /θiŋk əˈbaut/

      • Phrasal Verb
      • To consider something carefully.
      • To remember or call to mind.
      A1
      More
    • think 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
      A1
      More
    • to the moon

      US /tu ðə mun/

      UK /tu ðə mu:n/

      • other
      • Increasing quickly and significantly, often in value or excitement.
      B2
      More
    • together with

      US /təˈɡɛðɚ wɪð/

      UK /təˈɡeðə wið/

      • Preposition
      • In addition to; along with.
      • Including; as well as.
      A1
      More
    • ultimately

      US /ˈʌltəmɪtli/

      UK /ˈʌltɪmətli/

      • Adverb
      • Done or considered as the final and most important
      • Fundamentally; at the most basic level.
      B1TOEIC
      More
    • universe

      US /ˈjunəˌvɚs/

      UK /ˈju:nɪvɜ:s/

      • Noun (Countable/Uncountable)
      • All of space that contains planets and stars
      • Things surrounding a person, affecting their life
      B2
      More
    • velocity

      US /vəˈlɑsɪti/

      UK /və'lɒsətɪ/

      • Noun (Countable/Uncountable)
      • Speed in a given direction
      • The rate of change of an object's position with respect to time; a vector quantity.
      B1
      More
    • with respect to

      US /wɪð rɪˈspɛkt tu/

      UK /wið risˈpekt tu:/

      • Preposition
      • In relation to; regarding.
      • Phrase
      • In relation to; concerning.
      A1
      More
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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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    B1
    #einstein#newton#relativity#theory#isaac newton#general relativity

    Why general relativity would’ve been discovered without Einstein | Sean Carroll

    0
    林宜悉 posted on 2025/11/07
    Ever wondered if Einstein was the *only* one who could have figured out relativity? Sean Carroll dives into the fascinating evolution of scientific concepts, showing how ideas like General Relativity might have emerged even without Einstein! You'll boost your understanding of physics history and pick up some seriously advanced vocabulary along the way.

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