Vocabulary

  • in fact: Used to emphasize the truth of a statement, especially one that contrasts with or contradicts something else.
  • at least: As a minimum
  • at a time: Separately; one by one
  • depending on: To rely on for support (financial or emotional)
  • of course: Sure ; Certainly
  • for the best: Resulting in the most positive or beneficial outcome, even if it's difficult or painful in the short term.
  • ultimately: Done or considered as the final and most important
  • sense: Certain mental feeling or emotion
  • conquer: To take possession of (land, city) with an army
  • track: To use marks to follow a wild animal
  • imagine: To think creatively about; form mental picture of
  • fundamental: Forming a necessary part, base, or core
  • relationship: Connection between two or more people or things
  • estimate: Guess or calculation of cost, size or value
  • brutal: Extremely violent or mean
  • fraction: Small part of something
  • reach: To come to or arrive at a goal or destination
  • notorious: Being famous or publicly known for something bad
  • compare: To consider how similar and different things are
  • scientific: Concerning academic study of the physical world
  • distance: Lack of friendliness toward another person
  • reduce: To try to decrease, e.g. your weight if overweight
  • honestly: With truth or sincerity; I'm being honest with you
  • suggest: To mention something that could be done; propose
  • lot: What happens to a person in life from chance; fate
  • depend: Be controlled or determined by (someone/something)
  • century: Period of 100 years
  • control: A device designed to operate a machine
  • sperm: Cell produced by men and needed for reproduction
  • fact: Something that is known or proved to be true
  • modern: Of the present time; up to date; contemporary
  • rumor: To gossip; to tell a story about other people
  • ruthless: Not considering the feelings or health of others
  • chance: The way something happens without planning
  • question: To ask for or try to get information
  • grow: To get bigger and more mature; make plants do this
  • reproduce: To make a copy of something
  • mobile: Able to be moved or able to move
  • prolific: Producing something in large quantities
  • emperor: Man who rules an empire
  • abnormal: Not normal, not typical, not usual, not regular
  • possibility: Something with a chance of happening or being true
  • world: All the humans, events, activities on the earth
  • dynasty: Family that controls a country for a long time
  • interested: Having had your attention taken; curious
  • maximum: Largest or highest number or amount of something
  • lifetime: The time between birth and death
  • history: Established pattern or record
  • factory: Building where things are made
  • birth: Time when a baby or young animal is born
  • male: Characteristic of boys or men
  • calculation: Process or result of using mathematics
  • progeny: Offspring of an animal or plant
Placeholder Image

Preparing usage notes, please check back later

  • not found vocabularyNo vocabulary matches your filters
    • abnormal

      US /æbˈnɔ:rml/

      UK /æbˈnɔ:ml/

      • Adjective
      • Not normal, not typical, not usual, not regular
      • Relating to behavior that deviates from the norm.
      B1
      More
    • at a time

      US /æt e taɪm/

      UK /æt ə taim/

      • Phrase
      • Separately; one by one
      • Simultaneously; together
      A1
      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
    • birth

      US /bɜ:rθ/

      UK /bɜ:θ/

      • Noun (Countable/Uncountable)
      • Time when a baby or young animal is born
      • Beginning of something
      A2
      More
    • brutal

      US /ˈbrutl/

      UK /'bru:tl/

      • Adjective
      • Extremely violent or mean
      B1
      More
    • calculation

      US /ˌkælkjəˈleʃən/

      UK /ˌkælkjuˈleɪʃn/

      • Noun (Countable/Uncountable)
      • Process or result of using mathematics
      • An educated guess about something
      B2
      More
    • conquer

      US /ˈkɑŋkɚ/

      UK /'kɒŋkə(r)/

      • Transitive Verb
      • To take possession of (land, city) with an army
      • To beat something difficult, e.g. a fear; overcome
      B2
      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
    • depending 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.
      A2
      More
    • distance

      US /ˈdɪstəns/

      UK /'dɪstəns/

      • Uncountable Noun
      • Lack of friendliness toward another person
      • Noun (Countable/Uncountable)
      • Amount of space between two places or things
      • A point or place that is far away.
      A2
      More
    • dynasty

      US /ˈdaɪnəsti/

      UK /ˈdɪnəsti/

      • Countable Noun
      • Family that controls a country for a long time
      B1
      More
    • emperor

      US /ˈɛmpəɚ/

      UK /'empərə(r)/

      • Noun
      • Man who rules an empire
      B1
      More
    • estimate

      US /ˈɛstəˌmet/

      UK /'estɪmət/

      • Noun (Countable/Uncountable)
      • Guess or calculation of cost, size or value
      • A judgment or opinion.
      • Transitive Verb
      • To guess or calculate the cost, size or value of
      • To form an approximate idea or judgment of.
      A2TOEIC
      More
    • factory

      US /ˈfæktəri/

      UK /ˈfæktri/

      • Countable Noun
      • Building where things are made
      A2TOEIC
      More
    • for the best

      US

      UK

      • Phrase
      • Resulting in the most positive or beneficial outcome, even if it's difficult or painful in the short term.
      • Hoping for a positive outcome.
      A1
      More
    • fraction

      US /ˈfrækʃən/

      UK /ˈfrækʃn/

      • Noun (Countable/Uncountable)
      • Small part of something
      • A numerical quantity that is not a whole number (e.g., 1/2, 0.5).
      B1TOEIC
      More
    • fundamental

      US /ˌfʌndəˈmɛntl/

      UK /ˌfʌndəˈmentl/

      • Adjective
      • Forming a necessary part, base, or core
      • Of central importance.
      • Noun (Countable/Uncountable)
      • A basic part of something
      • (Music) the lowest note in a harmony
      A2TOEIC
      More
    • history

      US /ˈhɪstəri/

      UK /'hɪstrɪ/

      • Noun (Countable/Uncountable)
      • Established pattern or record
      • Study of past events as an academic subject
      A2
      More
    • honestly

      US /ˈɑnɪstli/

      UK /ˈɒnɪstli/

      • Adverb
      • With truth or sincerity; I'm being honest with you
      • Genuinely; in a sincere manner.
      A2
      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
    • lifetime

      US /ˈlaɪfˌtaɪm/

      UK /ˈlaɪftaɪm/

      • Noun (Countable/Uncountable)
      • The time between birth and death
      • An opportunity that is unlikely to occur again.
      • Adjective
      • Lasting for the duration of someone's life or the existence of something.
      B1
      More
    • male

      US /ˈmel/

      UK /meɪl/

      • Adjective
      • Characteristic of boys or men
      • Noun
      • A member of the sex that fertilizes eggs
      A2
      More
    • maximum

      US /ˈmæksəməm/

      UK /ˈmæksɪməm/

      • Noun
      • Largest or highest number or amount of something
      A2TOEIC
      More
    • mobile

      US /ˈmoʊbl/

      UK /'məʊbaɪl/

      • Adjective
      • Able to be moved or able to move
      • Able to move easily from one job, place, or social class to another.
      • Countable Noun
      • Personal phone you take with you wherever you go
      • A decorative structure that is suspended so as to turn freely in the air.
      B1
      More
    • notorious

      US /noʊ'tɔ:rɪrs/

      UK /nəʊ'tɔ:rɪəs/

      • Adjective
      • Being famous or publicly known for something bad
      B2
      More
    • of course

      US /ʌv kɔː(r)s/

      UK /ɔv kɔː(r)s/

      • Adverb
      • Sure ; Certainly
      • Phrase
      • For sure; certainly
      A2
      More
    • possibility

      US /ˌpɑsəˈbɪlɪti/

      UK /ˌpɒsə'bɪlətɪ/

      • Uncountable Noun
      • Something with a chance of happening or being true
      A2TOEIC
      More
    • progeny

      US /ˈprɑdʒəni/

      UK /'prɒdʒənɪ/

      • Noun
      • Offspring of an animal or plant
      C1
      More
    • prolific

      US /prəˈlɪfɪk/

      UK /prəˈlɪfɪk/

      • Adjective
      • Producing something in large quantities
      B2TOEIC
      More
    • reach

      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
      A2TOEIC
      More
    • reduce

      US /rɪˈdus, -ˈdjus/

      UK /rɪ'dju:s/

      • Verb (Transitive/Intransitive)
      • To try to decrease, e.g. your weight if overweight
      • To boil a liquid until it has decreased in amount
      A2TOEIC
      More
    • relationship

      US /rɪˈleʃənˌʃɪp/

      UK /rɪˈleɪʃnʃɪp/

      • Noun (Countable/Uncountable)
      • Connection between two or more people or things
      • Way people interact or live with each other
      A2TOEIC
      More
    • reproduce

      US /ˌriprəˈdus, -ˈdjus/

      UK /ˌri:prə'dju:s/

      • Verb (Transitive/Intransitive)
      • To make a copy of something
      • To have children/young; grow roots/new plants
      B1
      More
    • ruthless

      US /ˈruθlɪs/

      UK /ˈru:θləs/

      • Adjective
      • Not considering the feelings or health of others
      B2
      More
    • scientific

      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.
      A2
      More
    • sperm

      US /spə:m/

      UK /spɜ:m/

      • Noun (Countable/Uncountable)
      • Cell produced by men and needed for reproduction
      C2
      More
    • track

      US /træk/

      UK /træk/

      • Transitive Verb
      • To use marks to follow a wild animal
      • To move a certain way/follow a particular course
      • Noun
      • A circular course for running
      • Course or way someone takes, e.g. in education
      A2TOEIC
      More
    • ultimately

      US /ˈʌltəmɪtli/

      UK /ˈʌltɪmətli/

      • Adverb
      • Done or considered as the final and most important
      • Fundamentally; at the most basic level.
      B1TOEIC
      More
    Video not in English?
    Video not in English?

    Get the full experience in the app

    Learn anywhere with detailed sentence and usage analysis

    preview
    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

    preview

    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

    preview

    Try this speaking exercise.

    Try practicing with this sentence.

    80
    B1US
    #khan#augustus#genghis#genghis khan#birth#lifetime

    How Many Children Can A Human Have In A Lifetime?

    0
    Liang Chen posted on 2021/08/06
    Ever wondered about the limits of human reproduction? This video dives into fascinating historical figures like Genghis Khan and Mule Ismail to explore just how many children one person can have in a lifetime! You'll pick up some cool vocabulary while learning about biology and history.

    Learn this video on the APP!

    The VoiceTube App has more in-depth practice for videos!

    Recommended Videos

    Auto Next Video

    Footer

    Download on the App StoreGet it on Google Play

    About

    • About Us
    • Our Learning Services
    • Join Us
    • FAQ
    • Hot Tags

    Services

    • Pronunciation Challenge
    • Saved
    • Search Vocabulary
    • Blog

    Channels

    Levels

    • A1
    • A2
    • B1
    • B2
    • C1
    • C2

    Privacy˙Terms˙
    ©2026 VoiceTube Corporation. All rights reserved