Vocabulary

  • have to: Must do
  • go around: (Of news, gossip) to be known; circulate
  • figure out: To understand the behavior of someone
  • for example: As an illustration or instance.
  • instead of: When one thing is replaced by another
  • talking about: To discuss a particular topic.
  • to the point: Expressing something directly and without unnecessary detail.
  • add up to: To amount to a particular sum or total.
  • in fact: Used to emphasize the truth of a statement, especially one that contrasts with or contradicts something else.
  • end up with: To have something as a result.
  • as long as: For the period that; provided that.
  • no matter: Regardless of; it does not matter.
  • come up: To come closer to someone; approach
  • by doing that: Using that action or method.
  • figure: To appear in a game, play or event
  • straight: Not having curves, bends, or angles
  • time: Speed at which music is played; tempo
  • imagine: To think creatively about; form mental picture of
  • good: Proper, appropriate or right
  • form: Sports team or person's current winning record
  • measure: Plan to achieve a desired result
  • tricky: Difficult, so needing skill to do or deal with
  • combination: Series of letters or numbers needed to open a lock
  • fancy: To want to have or do something; feel like
  • important: Having power or authority
  • learn: To get knowledge or skills by study or experience
  • find: To become aware of something that is happening
  • apply: To spread a substance or liquid over a surface
  • edge: An advantage you have over others
  • line: Border that divides two places or regions
  • shape: The outer form of something, what it looks like
  • regular: Having an equal amount of space or time in between
  • long: Person's name
  • side: To decide to agree with one point, not the other
  • distance: Lack of friendliness toward another person
  • number: Symbols such as 1, 2, 56, 793
  • quantity: A large amount of something
  • video: Recording capturing action with sound
  • square: Shape with 4 equal length sides and 4 equal angles
  • formula: A mathematical or scientific rule
  • trace: To make an outline to determine a shape
  • border: To be right next to another country or state
  • absolute: Complete; total; pure; not limited in any way
  • length: Distance from one end of a pool to the other
  • accidentally: Unexpectedly; by mistake
  • multiply: To increase in number by reproducing/having babies
  • sum: Amount when all is added together; total
  • unfold: (Of a situation) to be told or revealed
  • vertical: (Of a line, etc.) going up and down; not horizontal
  • shortcut: A route that is shorter than the normal
  • calculate: To find an answer using mathematics
  • diagram: A drawing intended to explain how something works
  • horizontal: Concerning the horizon
  • perimeter: Outline or border; outer edge
  • dimensional: Concerning how many planes an object exists in
  • triangle: Three people connected with each in a relationship
  • rectangle: Four-sided geometrical shape with all right angles
  • geometry: Mathematical study of shapes, surfaces, and space
  • multiplication: Increase in the number of something
  • geometric: With regular mathematical patterns/straight lines
Placeholder Image

Preparing usage notes, please check back later

  • 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
    • accidentally

      US /ˌæksɪ'dentəlɪ/

      UK /ˌæksɪ'dentəlɪ/

      • Adverb
      • Unexpectedly; by mistake
      A2
      More
    • add up to

      US /æd ʌp tu/

      UK /æd ʌp tu:/

      • Phrasal Verb
      • To amount to a particular sum or total.
      • To have a particular result or effect; to be equal to.
      A2
      More
    • as long as

      US /æz lɔŋ æz/

      UK /æz lɔŋ æz/

      • Conjunction
      • For the period that; provided that.
      • For the length of time that
      • Preposition
      • On the condition that; providing that.
      • Having the same length as.
      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
    • by doing that

      US

      UK

      • Phrase
      • Using that action or method.
      A2
      More
    • calculate

      US /ˈkælkjəˌlet/

      UK /'kælkjʊleɪt/

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

      US /ˌkɑmbəˈneʃən/

      UK /ˌkɒmbɪ'neɪʃn/

      • Noun
      • Series of letters or numbers needed to open a lock
      • Act or result of mixing things together
      B1
      More
    • come up

      US /kʌm ʌp/

      UK /kʌm ʌp/

      • Phrasal Verb
      • To come closer to someone; approach
      • (Of sun) to rise into the sky in the morning
      A1
      More
    • diagram

      US /ˈdaɪəˌɡræm/

      UK /'daɪəɡræm/

      • Noun
      • A drawing intended to explain how something works
      • Transitive Verb
      • To show or explain something by drawing a picture
      B1
      More
    • dimensional

      US /dɪˈmɛnʃənl:/

      UK /dɪ'menʃənəl/

      • Adjective
      • Concerning how many planes an object exists in
      B1
      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
    • 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
    • end up with

      US

      UK

      • Phrasal Verb
      • To have something as a result.
      A1
      More
    • fancy

      US /ˈfænsi/

      UK /'fænsɪ/

      • Verb (Transitive/Intransitive)
      • To want to have or do something; feel like
      • To imagine or suppose that something will happen
      • Adjective
      • Unusual and attractive in design
      A2TOEIC
      More
    • figure 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.
      A1
      More
    • for example

      US

      UK

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

      US /ˈfɔrmjələ/

      UK /'fɔ:mjələ/

      • Noun (Countable/Uncountable)
      • A mathematical or scientific rule
      • Plan, rule or method for doing or making something
      A2TOEIC
      More
    • geometric

      US /ˌdʒiəˈmɛtrɪk/

      UK /ˌdʒi:əˈmetrɪk/

      • Adjective
      • With regular mathematical patterns/straight lines
      B2
      More
    • geometry

      US /dʒiˈɑ:mətri/

      UK /dʒiˈɒmətri/

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

      US /ɡo əˈraʊnd/

      UK /ɡəu əˈraund/

      • Phrasal Verb
      • (Of news, gossip) to be known; circulate
      • To go here and there, from place to place; wander
      A1
      More
    • have to

      US /hæv tu/

      UK /ˈhæv tə/

      • Auxiliary Verb
      • Must do
      A1
      More
    • horizontal

      US /ˌhɔ:rəˈzɑ:ntl/

      UK /ˌhɒrɪˈzɒntl/

      • Adjective
      • Concerning the horizon
      • A level and flat position
      • Adverb
      • In a horizontal position or direction.
      B1
      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
    • instead of

      US /ɪnˈstɛd ʌv/

      UK /inˈsted ɔv/

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

      US /leŋθ/

      UK /leŋθ/

      • Noun (Countable/Uncountable)
      • Distance from one end of a pool to the other
      • Measurement of distance or of time
      • Adjective
      • Being long in extent.
      A2
      More
    • multiplication

      US /ˌmʌltəplɪˈkeʃən/

      UK /ˌmʌltɪplɪˈkeɪʃn/

      • Uncountable Noun
      • Increase in the number of something
      • Process of multiplying one number by another
      B1
      More
    • multiply

      US /ˈmʌltəˌplaɪ/

      UK /ˈmʌltɪplaɪ/

      • Verb (Transitive/Intransitive)
      • To increase in number by reproducing/having babies
      • To increase something by a large quantity
      B1
      More
    • no matter

      US

      UK

      • Conjunction
      • Regardless of; it does not matter.
      • Adverb
      • Regardless of; it is not important
      A1
      More
    • perimeter

      US /pəˈrɪmɪtɚ/

      UK /pəˈrɪmɪtə(r)/

      • Noun
      • Outline or border; outer edge
      B2
      More
    • quantity

      US /ˈkwɑntɪti/

      UK /ˈkwɒntəti/

      • Noun (Countable/Uncountable)
      • A large amount of something
      • Amount or number of something
      A2TOEIC
      More
    • rectangle

      US /ˈrɛkˌtæŋɡəl/

      UK /ˈrektæŋgl/

      • Noun
      • Four-sided geometrical shape with all right angles
      B1TOEIC
      More
    • regular

      US /ˈrɛɡjəlɚ/

      UK /ˈregjələ(r)/

      • Adjective
      • Having an equal amount of space or time in between
      • Occurring or being done frequently
      • Noun (Countable/Uncountable)
      • Customers who frequently visit a place
      • Soldier who has a permanent job in the army
      A2TOEIC
      More
    • shortcut

      US /ˈʃɔrtˌkʌt/

      UK /'ʃɔ:tkʌt/

      • Noun
      • A route that is shorter than the normal
      B2
      More
    • square

      US /skwɛr/

      UK /skweə(r)/

      • Noun (Countable/Uncountable)
      • Shape with 4 equal length sides and 4 equal angles
      • The result of multiplying Length by the width
      • Adjective
      • Being fair or honest
      • Multiply a number by itself e.g. 2x2 or 6x6
      A2TOEIC
      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
    • sum

      US /sʌm/

      UK /sʌm/

      • Noun
      • Amount when all is added together; total
      • Transitive Verb
      • To add two or more numbers together; total
      A2TOEIC
      More
    • talking about

      US

      UK

      • Phrasal Verb
      • To discuss a particular topic.
      • To be constantly mentioning or bringing up a subject.
      A1
      More
    • to the point

      US /tu ði pɔɪnt/

      UK /tu: ðə pɔint/

      • Adjective
      • Expressing something directly and without unnecessary detail.
      • Phrase
      • Relevant and pertinent to the matter at hand.
      A2
      More
    • trace

      US /tres/

      UK /treɪs/

      • Transitive Verb
      • To make an outline to determine a shape
      • To find someone or something that has disappeared
      • Uncountable Noun
      • Very small quantity of something
      • A mark or other sign of the former presence or passage of something.
      B1
      More
    • triangle

      US /ˈtraɪˌæŋɡəl/

      UK /ˈtraɪæŋgl/

      • Noun
      • Three people connected with each in a relationship
      • A three-sided piece of metal used in orchestras
      B1TOEIC
      More
    • tricky

      US /ˈtrɪki/

      UK /'trɪkɪ/

      • Adjective
      • Difficult, so needing skill to do or deal with
      • Likely to use tricks; dishonest or deceptive
      A2
      More
    • unfold

      US /ʌnˈfold/

      UK /ʌn'fəʊld/

      • Verb (Transitive/Intransitive)
      • (Of a situation) to be told or revealed
      • To open something that was folded
      • Intransitive Verb
      • To happen, be told or be revealed
      B1
      More
    • vertical

      US /ˈvɜ:rtɪkl/

      UK /ˈvɜ:tɪkl/

      • Adjective
      • (Of a line, etc.) going up and down; not horizontal
      • Extending or operating upward from a base.
      • Noun
      • A vertical line or plane.
      • An upright structural member.
      B1
      More
    • video

      US /ˈvɪdiˌo/

      UK /'vɪdɪəʊ/

      • Noun (Countable/Uncountable)
      • Recording capturing action with sound
      • A recording of moving visual images made digitally or on videotape.
      • Transitive Verb
      • To make a moving film of, with sound
      • To make a video call.
      A2
      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
    A2US
    #perimeter#polygon#length#shape#distance#dimensional

    Math Antics - Perimeter

    0
    Yassion Liu posted on 2016/07/22
    Ever wondered how to measure the outside edge of a shape? This fun Math Antics video breaks down the concept of perimeter and shows you exactly how to calculate it for different polygons! You'll pick up essential geometry basics and practice simple sentence structures along the way.

    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