Vocabulary

  • in time: Eventually; after a period of time.
  • edge in: To insert oneself into a group or conversation gradually.
  • outside of: Located or situated beyond the boundaries or confines of something.
  • have to: Must do
  • at least: As a minimum
  • get back to: To get in contact with someone again
  • ever since: Continuously from a past time until now.
  • in a sense: In one way of thinking; to some extent; in some ways.
  • for sure: Definitely; certainly; without a doubt.
  • by definition: Inherently; as an essential quality or characteristic.
  • of course: Sure ; Certainly
  • walk around: To stroll or wander in a leisurely way.
  • instead of: When one thing is replaced by another
  • come back: To reply to someone, often forcefully
  • in a nutshell: As a summary; including the main points concisely
  • on earth: Used to emphasize a question expressing surprise or anger.
  • in the past: During a former period of time; previously.
  • at some point: At an unspecified time, usually in the future.
  • with time: As time passes; eventually.
  • genetic information: Hereditary information encoded in the genetic material (DNA or RNA) of an organism.
  • of means: Having resources or wealth available for use.
  • on paper: In theory or as a plan, but not necessarily in reality.
  • interact with
  • come up with: To think of an idea or solution; produce
  • get hands on: Involving active participation and direct experience.
  • stuff: Generic description for things, materials, objects
  • perspective: Artistic method of creating a sense of distance
  • weird: Odd or unusual; surprising; strange
  • sort: To organize things by putting them into groups
  • eventually: After a long time; after many attempts; in the end
  • incredibly: To a great degree; very; amazingly
  • straight: Not having curves, bends, or angles
  • revenue: Money that is made by or paid to a business
  • sense: Certain mental feeling or emotion
  • brilliant: Having a great amount of intelligence or talent
  • exact: Completely correct; accurate; specific
  • amount: Quantity of something
  • imagine: To think creatively about; form mental picture of
  • explore: To examine something in detail to learn about it
  • trial: Hearing and judgment of a case in court
  • chunk: A large bit of something; thick lump
  • gravity: (Of a situation) extreme seriousness
  • brain: To strike someone forcefully on the head
  • universe: All of space that contains planets and stars
  • primitive: Lacking a written language and advanced technology
  • genetic: Of, relating to, or controlled by genes
  • edge: An advantage you have over others
  • emerge: To rise or appear out of some background
  • direction: When someone tells people what to do
  • identical: The same in every way
  • expand: To make something larger in size, number, amount
  • visualize: To create a picture in your mind of something
  • create: To make, cause, or bring into existence
  • infinite: Being very large in amount
  • eternal: Endless; constant; never ending
  • mass: Religious ceremony in some Christian churches
  • perk: An advantage or something extra, such as money or goods, that you are given because of your job
  • mild: Gentle in nature or behavior
  • nutshell: Shell that surrounds the kernel of a nut
  • horizon: Line where the earth or sea meets the sky
  • hack: To illegally access someone else's computer
  • peel: Outer covering, or skin, of a piece of fruit
  • border: To be right next to another country or state
  • astronomical: Extremely large or high
  • science: Study of the physical world, based on facts
  • kind: In a caring and helpful manner
  • learn: To get knowledge or skills by study or experience
  • information: Collection of facts and details about something
  • finite: Having limits; lasting for a limited time
  • unravel: To work out the meaning of, in a slow careful way
  • chance: The way something happens without planning
  • point: An item to be discussed
  • infinitely: Continuing forever without end; very great
  • curl: To form something into a round or curved shape
  • hyper: Very excited or active
  • cosmic: Concerning space and the universe
  • find: To become aware of something that is happening
  • infinity: State of being without end; endless time, space
  • space: Empty area kept for a specific reason, like a car
  • expansion: Making or becoming larger
  • start: First time or place that a thing exists; beginning
  • suite: Group of several shorter pieces of music
  • sphere: Area of interest or activity
  • problem: Something difficult to deal with or causes trouble
  • cosmos: The universe
  • frost: To form ice on the surfaces in cold weather
  • calculate: To find an answer using mathematics
  • spaceship: Spacecraft designed to travel into space
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  • not found vocabularyNo vocabulary matches your filters
    • astronomical

      US /ˌæstrəˈnɑmɪkəl/

      UK /ˌæstrəˈnɒmɪkl/

      • Adjective
      • Extremely large or high
      • Of the study of stars and other bodies in space
      B2
      More
    • at 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.
      C2
      More
    • at some point

      US /æt sʌm pɔɪnt/

      UK /æt sʌm pɔint/

      • Phrase
      • At an unspecified time, usually in the future.
      A1
      More
    • border

      US /ˈbɔrdɚ/

      UK /'bɔ:də(r)/

      • Verb (Transitive/Intransitive)
      • To be right next to another country or state
      • To form the edge of something
      • Noun
      • Outer part or edge of something
      • Line separating one country, state from another
      A2TOEIC
      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
    • by definition

      US /baɪ ˌdɛfəˈnɪʃən/

      UK /bai ˌdefiˈniʃən/

      • Phrase
      • Inherently; as an essential quality or characteristic.
      B2
      More
    • calculate

      US /ˈkælkjəˌlet/

      UK /'kælkjʊleɪt/

      • Transitive Verb
      • To find an answer using mathematics
      • To make an educated guess about something
      B2
      More
    • chunk

      US /tʃʌŋk/

      UK /tʃʌŋk/

      • Noun (Countable/Uncountable)
      • A large bit of something; thick lump
      • A significant amount or portion.
      • Transitive Verb
      • To divide something into chunks.
      • To throw something forcefully (slang).
      B2
      More
    • come back

      US /kʌm bæk/

      UK /kʌm bæk/

      • Phrasal Verb
      • To reply to someone, often forcefully
      • To be remembered
      A1
      More
    • come up with

      US /kʌm ʌp wɪð/

      UK /kʌm ʌp wið/

      • Phrasal Verb
      • To think of an idea or solution; produce
      A1
      More
    • cosmic

      US /ˈkɑzmɪk/

      UK /'kɒzmɪk/

      • Adjective
      • Concerning space and the universe
      B2
      More
    • cosmos

      US /ˈkɑ:zmoʊs/

      UK /ˈkɒzmɒs/

      • Noun (Countable/Uncountable)
      • The universe
      B2
      More
    • curl

      US /kɚrl/

      UK /kɜ:l/

      • Transitive Verb
      • To form something into a round or curved shape
      • Noun
      • Something that has the shape of a curve or ring
      B2
      More
    • direction

      US /dɪˈrɛkʃən, daɪ-/

      UK /də'rekʃn/

      • Noun (Countable/Uncountable)
      • When someone tells people what to do
      • Describes the way you are going, e.g. North
      A2TOEIC
      More
    • edge

      US /ɛdʒ/

      UK /edʒ/

      • Noun (Countable/Uncountable)
      • An advantage you have over others
      • Cutting side of a sharp object
      • Transitive Verb
      • To cut something to make the blade sharp
      • To go around the boundary of something
      A2TOEIC
      More
    • edge in

      US /ɛdʒ ɪn/

      UK /edʒ ɪn/

      • other
      • To insert oneself into a group or conversation gradually.
      B2
      More
    • emerge

      US /ɪˈmɚdʒ/

      UK /ɪ'mɜ:dʒ/

      • Intransitive Verb
      • To rise or appear out of some background
      • To become known or apparent.
      A2TOEIC
      More
    • eternal

      US /ɪˈtɚnəl/

      UK /ɪ'tɜ:nl/

      • Adjective
      • Endless; constant; never ending
      B2
      More
    • eventually

      US /ɪˈvɛntʃuəli/

      UK /ɪˈventʃuəli/

      • Adverb
      • After a long time; after many attempts; in the end
      • At some later time; in the future
      A2
      More
    • ever since

      US /ˈɛvɚ sɪns/

      UK /ˈevə sins/

      • Adverb
      • Continuously from a past time until now.
      • Conjunction
      • From the time that; because.
      B2
      More
    • exact

      US /ɪɡˈzækt/

      UK /ɪɡ'zækt/

      • Adjective
      • Completely correct; accurate; specific
      • Transitive Verb
      • To get something, sometimes using force
      A2TOEIC
      More
    • expand

      US /ɪkˈspænd/

      UK /ɪk'spænd/

      • Verb (Transitive/Intransitive)
      • To make something larger in size, number, amount
      A2TOEIC
      More
    • expansion

      US /ɪkˈspænʃən/

      UK /ɪkˈspænʃn/

      • Noun (Countable/Uncountable)
      • Making or becoming larger
      • The process of increasing in size, number, or scope, especially in a business context.
      B2TOEIC
      More
    • explore

      US /ɪkˈsplɔr/

      UK /ɪk'splɔ:(r)/

      • Transitive Verb
      • To examine something in detail to learn about it
      • To travel to a place to discover more about it
      A2TOEIC
      More
    • finite

      US /ˈfaɪˌnaɪt/

      UK /ˈfaɪnaɪt/

      • Adjective
      • Having limits; lasting for a limited time
      B1
      More
    • 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.
      A2
      More
    • frost

      US /frɔ:st/

      UK /frɒst/

      • Verb (Transitive/Intransitive)
      • To form ice on the surfaces in cold weather
      • To cover something with a thin layer of ice
      • Uncountable Noun
      • Ice formed on the surfaces in cold weather
      B1
      More
    • genetic

      US /dʒəˈnɛtɪk/

      UK /dʒəˈnetɪk/

      • Adjective
      • Of, relating to, or controlled by genes
      • Relating to genes or heredity.
      B1
      More
    • genetic information

      US /dʒəˈnɛtɪk ˌɪnfɚˈmeʃən/

      UK /dʒiˈnetik ˌɪnfəˈmeiʃən/

      • Uncountable Noun
      • Hereditary information encoded in the genetic material (DNA or RNA) of an organism.
      More
    • get back to

      US /ɡɛt bæk tu/

      UK /ɡet bæk tu:/

      • Phrasal Verb
      • To get in contact with someone again
      • To return to someone or something; to respond at a later time.
      A1
      More
    • get hands on

      US

      UK

      • Adjective
      • Involving active participation and direct experience.
      • Verb (Transitive/Intransitive)
      • To become actively involved in managing or doing something.
      A1
      More
    • gravity

      US /ˈɡrævɪti/

      UK /ˈgrævəti/

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

      US /hæk/

      UK /hæk/

      • Transitive Verb
      • To illegally access someone else's computer
      • To cut away plants and branches to make a path
      • Noun (Countable/Uncountable)
      • Dry cough
      • Horse for hire to work or pull a vehicle for a fee
      B1TOEIC
      More
    • have to

      US /hæv tu/

      UK /ˈhæv tə/

      • Auxiliary Verb
      • Must do
      A1
      More
    • horizon

      US /həˈraɪzn/

      UK /həˈraɪzn/

      • Noun (Countable/Uncountable)
      • Line where the earth or sea meets the sky
      • Limits of someone's experience or understanding
      B1
      More
    • hyper

      US /'haɪpər/

      UK /ˈhaɪpə(r)/

      • Adjective
      • Very excited or active
      C1
      More
    • identical

      US /aɪˈdɛntɪkəl/

      UK /aɪˈdentɪkl/

      • Adjective
      • The same in every way
      • Satisfied by all values of the variables involved.
      B1
      More
    • in a nutshell

      US

      UK

      • Phrase
      • As a summary; including the main points concisely
      C2
      More
    • in a sense

      US /ɪn e sɛns/

      UK /in ə sens/

      • Phrase
      • In one way of thinking; to some extent; in some ways.
      B1
      More
    • in the past

      US

      UK

      • Phrase
      • During a former period of time; previously.
      A1
      More
    • in time

      US /ɪn taɪm/

      UK /in taim/

      • Adverb
      • Eventually; after a period of time.
      • Not late; with enough time to spare.
      • Phrase
      • Eventually; before it is too late.
      • According to the scheduled time; punctual.
      A1
      More
    • incredibly

      US /ɪnˈkrɛdəblɪ/

      UK /ɪnˈkredəbli/

      • Adverb
      • To a great degree; very; amazingly
      • Extremely; so much so it is hard to believe
      A2
      More
    • infinite

      US /ˈɪnfənɪt/

      UK /'ɪnfɪnət/

      • Adjective
      • Being very large in amount
      • Without an end; limitless; endless
      B2
      More
    • infinitely

      US /ˈɪnfənɪtlɪ/

      UK /ˈɪnfɪnətli/

      • Adverb
      • Continuing forever without end; very great
      B2
      More
    • infinity

      US /ɪnˈfɪnɪti/

      UK /ɪn'fɪnətɪ/

      • Uncountable Noun
      • State of being without end; endless time, space
      B2
      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
    • interact 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.
      A2
      More
    • mass

      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
      B1
      More
    • mild

      US /maɪld/

      UK /maɪld/

      • Adjective
      • Gentle in nature or behavior
      • Being neither too cold nor too hot
      A2
      More
    • nutshell

      US /ˈnʌtˌʃɛl/

      UK /ˈnʌtʃel/

      • Countable Noun
      • Shell that surrounds the kernel of a nut
      C2
      More
    • of course

      US /ʌv kɔː(r)s/

      UK /ɔv kɔː(r)s/

      • Adverb
      • Sure ; Certainly
      • Phrase
      • For sure; certainly
      A2
      More
    • of means

      US /ʌv minz/

      UK /əv mi:nz/

      • other
      • Having resources or wealth available for use.
      B2
      More
    • on earth

      US /ɑn ɚθ/

      UK /ɔn ə:θ/

      • Phrase
      • Used to emphasize a question expressing surprise or anger.
      • Used to emphasize that something is not possible or will not happen.
      A1
      More
    • on paper

      US /ɑn ˈpeɪpər/

      UK /ɔn ˈpeipə/

      • Phrase
      • In theory or as a plan, but not necessarily in reality.
      • Recorded in writing; documented.
      A1
      More
    • outside of

      US /aʊtˈsaɪd ʌv/

      UK /ˌautˈsaid ɔv/

      • Preposition
      • Located or situated beyond the boundaries or confines of something.
      • Beyond the scope, range, or limits of something.
      A1
      More
    • peel

      US /pil/

      UK /pi:l/

      • Noun (Countable/Uncountable)
      • Outer covering, or skin, of a piece of fruit
      • Transitive Verb
      • To remove the outer skin of something, e.g. fruit
      • To remove the cover or outer layer from something
      B1
      More
    • perk

      US /pɜ:rk/

      UK /pɜ:k/

      • Noun
      • An advantage or something extra, such as money or goods, that you are given because of your job
      • Intransitive Verb
      • To suddenly get more energy
      B2
      More
    • perspective

      US /pɚˈspɛktɪv/

      UK /pə'spektɪv/

      • Noun (Countable/Uncountable)
      • Artistic method of creating a sense of distance
      • Ability to understand what is important in life
      B1TOEIC
      More
    • primitive

      US /ˈprɪmɪtɪv/

      UK /ˈprɪmətɪv/

      • Adjective
      • Lacking a written language and advanced technology
      • Being rough and underdeveloped
      • Noun (Countable/Uncountable)
      • Self-taught artist; the art done in this style
      • Offensive people considered lacking a culture
      B1
      More
    • revenue

      US /ˈrevənju/

      UK /'revənju:/

      • Noun (Countable/Uncountable)
      • Money that is made by or paid to a business
      • Money a government collects from its people
      A2TOEIC
      More
    • science

      US /ˈsaɪəns/

      UK /'saɪəns/

      • Uncountable Noun
      • Study of the physical world, based on facts
      A2TOEIC
      More
    • spaceship

      US /ˈspesˌʃɪp/

      UK /ˈspeɪsʃɪp/

      • Noun
      • Spacecraft designed to travel into space
      C2
      More
    • sphere

      US /sfɪr/

      UK /sfɪə(r)/

      • Noun (Countable/Uncountable)
      • Area of interest or activity
      • A round 3D object shaped like a ball
      B1
      More
    • straight

      US /stret/

      UK /streɪt/

      • Adjective
      • Not having curves, bends, or angles
      • Not gay; heterosexual
      • Adverb
      • in a line; immediately; honestly and directly
      • In a straight line; directly.
      A2TOEIC
      More
    • stuff

      US /stʌf/

      UK /stʌf/

      • Uncountable Noun
      • Generic description for things, materials, objects
      • Transitive Verb
      • To push material inside something, with force
      B1
      More
    • suite

      US /swit/

      UK /swi:t/

      • Noun
      • Group of several shorter pieces of music
      • Set of rooms used for a particular purpose
      B2TOEIC
      More
    • trial

      US /ˈtraɪəl, traɪl/

      UK /ˈtraɪəl/

      • Noun (Countable/Uncountable)
      • Hearing and judgment of a case in court
      • Act or process of testing or experimenting
      • Transitive Verb
      • To be made or done as a test or experiment
      A2TOEIC
      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
    • unravel

      US /ʌnˈrævəl/

      UK /ʌnˈrævl/

      • Verb (Transitive/Intransitive)
      • To work out the meaning of, in a slow careful way
      • To separate or disentangle threads; to come apart.
      B2
      More
    • visualize

      US /ˈvɪʒuəˌlaɪz/

      UK /ˈvɪʒuəlaɪz/

      • Transitive Verb
      • To create a picture in your mind of something
      B1
      More
    • walk around

      US

      UK

      • Phrasal Verb
      • To stroll or wander in a leisurely way.
      • To move about in order to inspect something.
      A2
      More
    • weird

      US /wɪrd/

      UK /wɪəd/

      • Adjective
      • Odd or unusual; surprising; strange
      • Eerily strange or disturbing.
      B1
      More
    • with time

      US

      UK

      • Phrase
      • As time passes; eventually.
      • Given enough time; in the course of time.
      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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    B2
    #universe#infinite#finite#observable#observable universe#brilliant

    The Paradox of an Infinite Universe

    0
    林宜悉 posted on 2026/01/19
    Ever wondered if there are infinite copies of you out there? This video dives into the mind-bending concept of an infinite universe, exploring cosmic topology and the Big Bang with fascinating thought experiments. You'll pick up some awesome advanced vocabulary while exploring these mind-blowing ideas, perfect for any space enthusiast!

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