Vocabulary

  • in the middle of: In the central part or point of something.
  • into space: Toward or entering the region beyond Earth's atmosphere.
  • in practice: In reality or actual use; as opposed to in theory.
  • on earth: Used to emphasize a question expressing surprise or anger.
  • sit: To take an exam
  • carry: To have a child, be pregnant
  • present: Being in attendance; being there; having turned up
  • practice: The office and place for legal or medical work
  • paper: Academic writing or a talk on a specific topic
  • visit: To go to a place for a time, usually for a reason
  • difficult: Hard; not easy; you need to work hard to do it
  • person: Man, woman or child
  • year: Unit of time equal to 12 months or 365 or 366 days
  • big: Popular
  • space: Empty area kept for a specific reason, like a car
  • simple: Not hard to understand or do; not complex
  • middle: Place that is halfway between two things
  • toy: Things children play with, as dolls or small cars
  • idea: Belief, thought, suggestion, opinion or plan
  • form: Sports team or person's current winning record
  • brush: To touch against a thing very lightly when moving
  • sheet: Piece of cloth you put on the bed to sleep on
  • hold: To agree to keep something for someone
  • pull: Act of breathing in smoke, as from a pipe
  • field: Area of study, such as physics or biology
  • team: Group of people working on a task together
  • information: Collection of facts and details about something
  • check: Paper showing how much you owe at a restaurant
  • true: Agreeing with the facts; not false; real or actual
  • experiment: Test performed to assess new ideas or theories
  • tiny: Very, very small
  • invent: To create something such as a story or excuse
  • predict: To guess or estimate what will or might happen
  • thickness: Distance between the opposite edges of a thing
  • ruin: To damage or completely destroy something
  • announce: To make a public statement about a plan, decision
  • touch: To affect feelings, especially by causing sympathy
  • principal: Leading person in a group of musicians or dancers
  • drag: To reluctantly move or go somewhere
  • atmosphere: Air around us
  • figure: To appear in a game, play or event
  • appear: To be seen, become visible; come into sight
  • planet: One of the bodies that orbit the sun
  • challenge: An activity you wish to try that may be hard to do
  • investigator: Someone who finds information about something
  • disturbance: Public incident in which some people act badly
  • curved: Bent; rounded; not straight
  • twist: To turn something in a circular direction
  • slight: Small (amount, quality)
  • disturb: To cause someone anxiety or fear
  • measure: Plan to achieve a desired result
  • satellite: Device sent into space that aids communication
  • device: Object, machine, or equipment for a specific use
  • precisely: In an exact and accurate manner
  • analysis: Careful study to better understand something
  • theory: Ideas or principles that explain facts or events
  • mission: A task or role someone is given to do
  • mass: Religious ceremony in some Christian churches
  • surface: To give (road) a top layer
  • spin: To make a ball rotate when throwing it
  • fabric: Cloth or material
  • detect: To discover or identify the presence of something
  • distort: To change the shape, appearance, or sound
  • magnetic: Having the properties of a magnet; able to attract
  • drift: (Of sand, etc.) to be blown into heaps by the wind
  • vortex: Spiral motion of fluid within a limited area
  • gravity: (Of a situation) extreme seriousness
  • gyro: Greek sandwich of sliced roast lamb in pita bread
  • trampoline: Gymnastic apparatus with canvas sheet on springs
  • relativity: Einstein theory about time, space and position
  • spacecraft: Vehicle capable of traveling to outer space
  • dimple: Indentation in cheek or chin, e.g. when smiling
  • gyroscope: Rotating mechanism in the form of a universally mounted spinning wheel that offers resistance to turns in any direction
  • wobble: To be indecisive; hesitate
  • stationary: Being still or unmoving
  • penetrating: To enter or pass through something
  • physicist: Person who studies and works in physics
  • swirl: To make a twisting shape, mark, or pattern
  • woven: Made by crossing threads/strips one over the other
Placeholder Image

Preparing usage notes, please check back later

  • not found vocabularyNo vocabulary matches your filters
    • analysis

      US /əˈnælɪsɪs/

      UK /əˈnæləsɪs/

      • Uncountable Noun
      • Careful study to better understand something
      B1TOEIC
      More
    • announce

      US /əˈnaʊns/

      UK /əˈnaʊns/

      • Transitive Verb
      • To make a public statement about a plan, decision
      A2
      More
    • atmosphere

      US /ˈætməˌsfɪr/

      UK /'ætməsfɪə(r)/

      • Noun (Countable/Uncountable)
      • Air around us
      • Feeling or mood of a place
      A2
      More
    • brush

      US /brʌʃ/

      UK /brʌʃ/

      • Verb (Transitive/Intransitive)
      • To touch against a thing very lightly when moving
      • To clean, paint, or apply something with a brush
      • Noun (Countable/Uncountable)
      • Quick and gentle movement
      • Thing with hairs used to apply paint, etc.
      A2
      More
    • challenge

      US /ˈtʃæləndʒ/

      UK /'tʃælɪndʒ/

      • Noun (Countable/Uncountable)
      • An activity you wish to try that may be hard to do
      • Act of formally inviting someone to compete
      • Transitive Verb
      • To formally invite someone to compete at something
      • To question the correctness of something
      A2
      More
    • curved

      US /kə:vd/

      UK /kɜ:vd/

      • Adjective
      • Bent; rounded; not straight
      • Consisting of or bounded by a curve.
      • Transitive Verb
      • To make something bend into a rounded shape
      • To throw (a ball) so that it travels along a curve.
      B1
      More
    • detect

      US /dɪˈtɛkt/

      UK /dɪˈtekt/

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

      US /dɪˈvaɪs/

      UK /dɪˈvaɪs/

      • Noun (Countable/Uncountable)
      • Object, machine, or equipment for a specific use
      • Method of doing something; a way
      A2TOEIC
      More
    • dimple

      US /ˈdɪmpəl/

      UK /'dɪmpl/

      • Noun
      • Indentation in cheek or chin, e.g. when smiling
      C2
      More
    • distort

      US /dɪˈstɔrt/

      UK /dɪ'stɔ:t/

      • Transitive Verb
      • To change the shape, appearance, or sound
      • To exaggerate the truth or fact, e.g. to deceive
      B1
      More
    • disturb

      US /dɪˈstɜ:rb/

      UK /dɪˈstɜ:b/

      • Transitive Verb
      • To cause someone anxiety or fear
      • To cause someone anxiety or fear
      A2TOEIC
      More
    • disturbance

      US /dɪˈstɚbəns/

      UK /dɪˈstɜ:bəns/

      • Noun (Countable/Uncountable)
      • Public incident in which some people act badly
      • Being disturbed; something that causes disruption
      A2
      More
    • drag

      US /dræɡ/

      UK /dræɡ/

      • Transitive Verb
      • To reluctantly move or go somewhere
      • To pull something heavy or difficult along the ground
      • Noun (Countable/Uncountable)
      • Force of air pushing back against a plane car etc.
      • Boring or annoying thing/activity
      A2
      More
    • drift

      US /drɪft/

      UK /drɪft/

      • Intransitive Verb
      • (Of sand, etc.) to be blown into heaps by the wind
      • (Of boats) to move without purpose on water
      B1
      More
    • experiment

      US /ɪkˈspɛrəmənt/

      UK /ɪk'sperɪmənt/

      • Noun (Countable/Uncountable)
      • Test performed to assess new ideas or theories
      • A course of action tentatively adopted without being sure of the eventual outcome.
      • Verb (Transitive/Intransitive)
      • To create and perform tests to research something
      • To try something new that you haven't tried before
      A2TOEIC
      More
    • fabric

      US /ˈfæbrɪk/

      UK /ˈfæbrɪk/

      • Noun (Countable/Uncountable)
      • Cloth or material
      • Basic structure
      B1TOEIC
      More
    • gravity

      US /ˈɡrævɪti/

      UK /ˈgrævəti/

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

      US /'dʒaɪroʊ/

      UK /'dʒaɪrəʊ/

      • Countable Noun
      • Greek sandwich of sliced roast lamb in pita bread
      C2
      More
    • in practice

      US /ɪn ˈpræktɪs/

      UK /in ˈpræktis/

      • Phrase
      • In reality or actual use; as opposed to in theory.
      A1
      More
    • in the middle of

      US

      UK

      • Phrase
      • In the central part or point of something.
      • Engaged or occupied with something.
      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
    • invent

      US /ɪnˈvɛnt/

      UK /ɪnˈvent/

      • Transitive Verb
      • To create something such as a story or excuse
      • To create something useful for the first time
      A2TOEIC
      More
    • investigator

      US /ɪnˈvɛstɪˌɡetɚ/

      UK /ɪnˈvestɪgeɪtə(r)/

      • Countable Noun
      • Someone who finds information about something
      A2
      More
    • magnetic

      US /mæɡˈnɛtɪk/

      UK /mægˈnetɪk/

      • Adjective
      • Having the properties of a magnet; able to attract
      • Having great power to attract attention, interest
      B2
      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
    • mission

      US /ˈmɪʃən/

      UK /'mɪʃn/

      • Noun (Countable/Uncountable)
      • A task or role someone is given to do
      • Special assignment given to a person or group
      B1TOEIC
      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
    • penetrating

      US /ˈpɛnɪˌtretɪŋ/

      UK /ˈpenɪtreɪtɪŋ/

      • Verb (Transitive/Intransitive)
      • To enter or pass through something
      • To gain a market in a new area or country
      • Adjective
      • (Of wit, understanding etc.) keen; to the point
      B1
      More
    • physicist

      US /ˈfɪzɪsɪst/

      UK /ˈfɪzɪsɪst/

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

      US /ˈplænɪt/

      UK /'plænɪt/

      • Noun (Countable/Uncountable)
      • One of the bodies that orbit the sun
      • A different world or sphere of existence.
      • Proper Noun
      • The earth.
      A2
      More
    • practice

      US /ˈpræktɪs/

      UK /'præktɪs/

      • Noun
      • The office and place for legal or medical work
      • Doing something many times to become better at it
      • Verb (Transitive/Intransitive)
      • To work as a doctor or lawyer
      • To live according to the teachings of a religion
      A2TOEIC
      More
    • precisely

      US /prɪˈsaɪsli/

      UK /prɪˈsaɪsli/

      • Adverb
      • In an exact and accurate manner
      • (Emphasizes that a statement is totally correct)
      B1TOEIC
      More
    • predict

      US /prɪˈdɪkt/

      UK /prɪ'dɪkt/

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

      US /ˈprɪnsəpəl/

      UK /ˈprɪnsəpl/

      • Noun
      • Leading person in a group of musicians or dancers
      • Head teacher of a school
      • Adjective
      • Being the main or most important
      A2TOEIC
      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
    • ruin

      US /ˈruɪn/

      UK /'ru:ɪn/

      • Transitive Verb
      • To damage or completely destroy something
      • To cause someone to lose their money or status
      • Noun (Countable/Uncountable)
      • Remains of a building that has been destroyed
      • The state of being destroyed or severely damaged.
      B1
      More
    • satellite

      US /ˈsætlˌaɪt/

      UK /'sætəlaɪt/

      • Noun (Countable/Uncountable)
      • Device sent into space that aids communication
      • Natural object in space that moves around another
      B1
      More
    • sheet

      US /ʃit/

      UK /ʃi:t/

      • Noun (Countable/Uncountable)
      • Piece of cloth you put on the bed to sleep on
      • Piece of thin flat metal, plastic or glass
      A2
      More
    • slight

      US /slaɪt/

      UK /slaɪt/

      • Adjective
      • Small (amount, quality)
      • Appearing thin, delicate and physically weak
      • Transitive Verb
      • To ignore or treat rudely and with no respect
      B1
      More
    • spacecraft

      US /ˈspeɪskræft/

      UK /ˈspeɪskrɑ:ft/

      • Noun
      • Vehicle capable of traveling to outer space
      • An unmanned probe or satellite designed for space exploration.
      C2
      More
    • spin

      US /spɪn/

      UK /spɪn/

      • Verb (Transitive/Intransitive)
      • To make a ball rotate when throwing it
      • To move something in a rapid turning motion
      • Intransitive Verb
      • To feel dizzy/confused, as in my head is spinning
      B1
      More
    • stationary

      US /ˈsteʃəˌnɛri/

      UK /'steɪʃənrɪ/

      • Adjective
      • Being still or unmoving
      B2TOEIC
      More
    • surface

      US /ˈsɚfəs/

      UK /'sɜ:fɪs/

      • Transitive Verb
      • To give (road) a top layer
      • Intransitive Verb
      • To appear after being hidden, unseen, or unknown
      • To come to the top of something; emerge
      A2TOEIC
      More
    • swirl

      US /swɜrl/

      UK /swɜ:l/

      • Verb (Transitive/Intransitive)
      • To make a twisting shape, mark, or pattern
      B1
      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
    • thickness

      US /ˈθɪknɪs/

      UK /ˈθɪknəs/

      • Uncountable Noun
      • Distance between the opposite edges of a thing
      A2
      More
    • tiny

      US /ˈtaɪni/

      UK /'taɪnɪ/

      • Adjective
      • Very, very small
      A2
      More
    • toy

      US /tɔɪ/

      UK /tɔɪ/

      • Countable Noun
      • Things children play with, as dolls or small cars
      • Adjective
      • Something small in size compared to an original
      A2
      More
    • trampoline

      US /ˈtræmpəˌlin, -lɪn/

      UK /ˈtræmpəli:n/

      • Noun
      • Gymnastic apparatus with canvas sheet on springs
      • A recreational and competitive device consisting of a piece of taut, strong fabric stretched over a frame using many coiled springs.
      • Intransitive Verb
      • To jump on a trampoline.
      C1
      More
    • twist

      US /twɪst/

      UK /twɪst/

      • Verb (Transitive/Intransitive)
      • To turn something in a circular direction
      • To turn in a curving direction e.g. road or path
      • Noun (Countable/Uncountable)
      • Turn or spiral curve in a path or road
      • Bend or sudden change of direction
      A2
      More
    • wobble

      US /ˈwɑ:bl/

      UK /ˈwɒbl/

      • Verb (Transitive/Intransitive)
      • To be indecisive; hesitate
      • To walk or move with a rocking, staggering motion
      B2
      More
    • woven

      US /ˈwovən/

      UK /'wəʊvn/

      • Adjective
      • Made by crossing threads/strips one over the other
      • Transitive Verb
      • To make a cloth or baskets by crossing threads
      B1
      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
    B1
    #space time#vortex#probe#earth#gravity#space

    ScienceCasts: Space-Time Vortex

    0
    薛惠綸 posted on 2014/01/04
    Ever wondered if Earth is actually sitting in a space-time vortex? This awesome ScienceCasts video from NASA dives into the mind-bending concept of General Relativity and how the Gravity Probe B mission proved Einstein right about 'frame dragging'! You'll pick up some seriously cool advanced vocabulary related to physics and space while understanding complex ideas through simple sentences.

    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