Vocabulary

  • turned out: To arrive for a public event or entertainment
  • in a flash: Extremely quickly; instantaneously.
  • as anything: Used to emphasize intensity or degree of a quality or action.
  • at the moment: At this time; now
  • on earth: Used to emphasize a question expressing surprise or anger.
  • same time: Occurring simultaneously or at the same point in time.
  • threat to: A person or thing likely to cause damage or danger.
  • come from: To have as your native country or city
  • such as: For example; like
  • go on: To continue doing something
  • tuned to: To adjust a radio receiver to the frequency of a particular station.
  • travel: To go to a place that is far away
  • stay: To keep trying without giving up
  • year: Unit of time equal to 12 months or 365 or 366 days
  • present: Being in attendance; being there; having turned up
  • unknown: Not being known or famous
  • time: Speed at which music is played; tempo
  • space: Empty area kept for a specific reason, like a car
  • bright: Cheerful and happy (manner)
  • site: Place that is reserved for a particular activity
  • wide: Having a great distance from one side to the other
  • size: How big or small a thing is
  • kg: 1000g. The weight of one liter of water
  • hit: To have a negative impact on a person/place/thing
  • brightness: Amount of light something has
  • jump: To attack someone suddenly
  • record: Highest or most extreme level achieved
  • digital: Using electronic signals or computers
  • pack: Bag carried on the back of donkey, etc.
  • pick: Sharp tool used for breaking the ground
  • tune: To make adjustments to equipment to make it better
  • repeat: Action that is done again
  • event: Any social gathering; occasion; planned activity
  • system: Set of organized, planned ideas that work together
  • ground: To break (coffee, etc.) into tiny bits with machine
  • candidate: Politician who is running for public office
  • explode: To express an emotion in a sudden and loud way
  • result: Something produced through tests or experiments
  • frequency: Number of repetitions of (radio or sound) wave
  • strike: To hit something
  • atmosphere: Air around us
  • valuable: Being useful or important
  • crash: To damage an object by causing it to hit something
  • region: Part of a country, of the world, area, etc.
  • require: To demand that someone does something
  • performance: Act of doing something
  • protect: To defend someone or something from harm or danger
  • impact: A striking effect or result to hit with force
  • monitor: To observe and keep a record of something
  • explosion: Loud and sudden expression of emotion
  • surface: To give (road) a top layer
  • measure: Plan to achieve a desired result
  • flash: To appear suddenly and briefly
  • analyst: Someone who is skilled at studying details of data
  • occur: To come to pass or to happen
  • measurement: Size or amount of something or someone
  • encounter: To come up against a problem or trouble; meet
  • telescope: Tube-shaped device used to see a great distance
  • extended: To offer something (help, friendship) to someone
  • identical: The same in every way
  • expose: To make visible, without covering or protection
  • cause: Belief, goal or organization that people support
  • constitute: To become a group of
  • detect: To discover or identify the presence of something
  • astronaut: Person who travels in space
  • duration: Length of time that something lasts
  • pose: To be or exist as (a problem, threat etc.)
  • random: Chosen, done without a particular plan or pattern
  • glow: Pink color in the face, e.g. from exercise/emotion
  • hypothesis: A theory trying to explain something
  • lunar: Concerning, about, or from the moon
  • program: To make someone act or think in a certain way
  • crater: Large hole in ground caused by heavy impact
  • debris: Remains of something broken or destroyed
  • asteroid: Very small planets that move around the sun
  • magnitude: Number representing force of an earthquake
  • moonwalk: Kind of dance step in which the dancer seems to be sliding on the spot
  • meteor: Rock from space that enters the Earth's atmosphere
  • mph: MPH is an acronym for miles per hour
  • comet: Moving object in space, with a long, bright tail
  • validate: To show to be officially correct or allowable
  • notify: To inform; to communicate specific information
  • boulder: Big rock, usually round in shape
  • spacecraft: Vehicle capable of traveling to outer space
  • cluster: To come together in a group, flock etc.
Placeholder Image

    Preparing usage notes, please check back later

  • not found vocabularyNo vocabulary matches your filters
    • analyst

      US /ˈænəlɪst/

      UK /ˈænəlɪst/

      • Noun (Countable/Uncountable)
      • Someone who is skilled at studying details of data
      B1
      More
    • as anything

      US /əz ˈɛnɪθɪŋ/

      UK /əz ˈeniθɪŋ/

      • other
      • Used to emphasize intensity or degree of a quality or action.
      B2
      More
    • asteroid

      US /ˈæstəˌrɔɪd/

      UK /ˈæstərɔɪd/

      • Noun
      • Very small planets that move around the sun
      B2
      More
    • astronaut

      US /ˈæstrəˌnɔt/

      UK /ˈæstrənɔ:t/

      • Countable Noun
      • Person who travels in space
      B2
      More
    • at the moment

      US

      UK

      • Adverb
      • At this time; now
      A1
      More
    • atmosphere

      US /ˈætməˌsfɪr/

      UK /'ætməsfɪə(r)/

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

      US /ˈboʊldə(r)/

      UK /ˈbəʊldə(r)/

      • Countable Noun
      • Big rock, usually round in shape
      B1
      More
    • bright

      US /braɪt/

      UK /braɪt/

      • Adjective
      • Cheerful and happy (manner)
      • (Of color) light and easy to see; vivid
      A2
      More
    • brightness

      US /ˈbraɪtnɪs/

      UK /'braɪtnəs/

      • Noun (Countable/Uncountable)
      • Amount of light something has
      A2
      More
    • candidate

      US /ˈkændɪˌdet, -dɪt/

      UK /ˈkændɪdət/

      • Noun (Countable/Uncountable)
      • Politician who is running for public office
      B1
      More
    • cause

      US /kɔz/

      UK /kɔ:z/

      • Noun
      • Belief, goal or organization that people support
      • Reason for
      • Transitive Verb
      • To make something happen; create effect or result
      A2
      More
    • cluster

      US /ˈklʌstɚ/

      UK /'klʌstə(r)/

      • Intransitive Verb
      • To come together in a group, flock etc.
      • Countable Noun
      • A small group of things
      B1
      More
    • come from

      US /kʌm frʌm/

      UK /kʌm frɔm/

      • Phrasal Verb
      • To have as your native country or city
      A1
      More
    • comet

      US /ˈkɑ:mət/

      UK /ˈkɒmɪt/

      • Noun
      • Moving object in space, with a long, bright tail
      B2
      More
    • constitute

      US /ˈkɑnstɪˌtut, -ˌtjut/

      UK /'kɒnstɪtju:t/

      • Transitive Verb
      • To become a group of
      • To establish or form a government, etc.
      B1TOEIC
      More
    • crater

      US /ˈkretɚ/

      UK /'kreɪtə(r)/

      • Noun
      • Large hole in ground caused by heavy impact
      B1
      More
    • debris

      US /dəˈbri, de-, ˈdeˌbri/

      UK /dəˈbri:, deɪ-, ˈdeɪˌbri:/

      • Uncountable Noun
      • Remains of something broken or destroyed
      • Accumulated fragments of rock.
      B2TOEIC
      More
    • detect

      US /dɪˈtɛkt/

      UK /dɪˈtekt/

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

      US /duˈreɪʃn/

      UK /djuˈreɪʃn/

      • Uncountable Noun
      • Length of time that something lasts
      B1TOEIC
      More
    • encounter

      US /ɛnˈkaʊntɚ/

      UK /ɪn'kaʊntə(r)/

      • Verb (Transitive/Intransitive)
      • To come up against a problem or trouble; meet
      • To meet someone or something unexpectedly
      • Noun
      • A chance meeting; unexpected or unplanned meeting
      B1TOEIC
      More
    • explode

      US /ɪkˈsplod/

      UK /ɪk'spləʊd/

      • Verb (Transitive/Intransitive)
      • To express an emotion in a sudden and loud way
      • To increase in number or amount very quickly
      B1
      More
    • explosion

      US /ɪkˈsploʒən/

      UK /ɪkˈspləʊʒn/

      • Noun (Countable/Uncountable)
      • Loud and sudden expression of emotion
      • Sudden increase of something
      B1
      More
    • expose

      US /ɪkˈspoʊz/

      UK /ɪk'spəʊz/

      • Transitive Verb
      • To make visible, without covering or protection
      • To allow light through a cameras lens onto film
      A2TOEIC
      More
    • extended

      US /ɪkˈstɛndɪd/

      UK /ɪkˈstendɪd/

      • Transitive Verb
      • To offer something (help, friendship) to someone
      • To reach from one point to another
      • Adjective
      • Made longer or larger.
      A2
      More
    • flash

      US /flæʃ/

      UK /flæʃ/

      • Intransitive Verb
      • To appear suddenly and briefly
      • To shine brightly very suddenly and briefly
      • Noun (Countable/Uncountable)
      • Sudden and brief appearance of something
      • Light used by a camera to brighten the area
      B1
      More
    • frequency

      US /ˈfrikwənsi/

      UK /'fri:kwənsɪ/

      • Uncountable Noun
      • Number of repetitions of (radio or sound) wave
      • How often something happens
      B1TOEIC
      More
    • glow

      US /ɡlo/

      UK /ɡləʊ/

      • Noun
      • Pink color in the face, e.g. from exercise/emotion
      • Pleasant feeling, as of happiness or satisfaction
      • Intransitive Verb
      • To look very healthy and contented
      • To emit a steady even light
      B1
      More
    • go on

      US /ɡo ɑn/

      UK /ɡəu ɔn/

      • Phrasal Verb
      • To continue doing something
      • To happen (usually negative)
      • Interjection
      • Used to encourage someone
      A1
      More
    • hypothesis

      US /haɪˈpɑθɪsɪs/

      UK /haɪˈpɒθəsɪs/

      • Noun
      • A theory trying to explain something
      • A supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.
      B1
      More
    • identical

      US /aɪˈdɛntɪkəl/

      UK /aɪˈdentɪkl/

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

      US /ˈɪmˌpækt/

      UK /'ɪmpækt/

      • Noun
      • A striking effect or result to hit with force
      • Act or force of one thing hitting something else
      • Verb (Transitive/Intransitive)
      • To hit or strike someone or something with force
      • To have a strong effect on someone or something.
      A2TOEIC
      More
    • in a flash

      US

      UK

      • Phrase
      • Extremely quickly; instantaneously.
      • Suddenly and unexpectedly.
      A1
      More
    • kg

      US

      UK

      • Noun
      • 1000g. The weight of one liter of water
      A2
      More
    • lunar

      US /ˈlunɚ/

      UK /ˈlu:nə(r)/

      • Adjective
      • Concerning, about, or from the moon
      • Determined by the moon's cycles.
      B2
      More
    • magnitude

      US /ˈmæɡnɪˌtud, -ˌtjud/

      UK /ˈmægnɪtju:d/

      • Noun
      • Number representing force of an earthquake
      • Size or importance
      B2
      More
    • measurement

      US /ˈmeʒərmənt/

      UK /ˈmeʒəmənt/

      • Uncountable Noun
      • Size or amount of something or someone
      A2TOEIC
      More
    • meteor

      US /ˈmitiɚ, -ˌɔr/

      UK /ˈmi:tiə(r)/

      • Noun
      • Rock from space that enters the Earth's atmosphere
      B2
      More
    • monitor

      US /ˈmɑ:nɪtə(r)/

      UK /ˈmɒnɪtə(r)/

      • Transitive Verb
      • To observe and keep a record of something
      • To observe and check the progress or quality of (something) over a period of time; keep under systematic review.
      • Noun
      • A senior student at school
      • Electronic screen on which you can see images
      A2TOEIC
      More
    • notify

      US /ˈnotəˌfaɪ/

      UK /'nəʊtɪfaɪ/

      • Transitive Verb
      • To inform; to communicate specific information
      B2
      More
    • occur

      US /əˈkɚ/

      UK /əˈkɜ:(r)/

      • Intransitive Verb
      • To come to pass or to happen
      • To be found to exist; to be present.
      A2TOEIC
      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
    • performance

      US / pɚˈfɔrməns/

      UK /pə'fɔ:məns/

      • Noun
      • Act of doing something
      • Activity done to entertain an audience
      A2TOEIC
      More
    • pose

      US /poʊz/

      UK /pəʊz/

      • Verb (Transitive/Intransitive)
      • To be or exist as (a problem, threat etc.)
      • To suggest an idea, question or solution
      • Noun
      • False behavior to gain respect or liking
      B1TOEIC
      More
    • random

      US /ˈrændəm/

      UK /'rændəm/

      • Adjective
      • Chosen, done without a particular plan or pattern
      B1
      More
    • region

      US /ˈridʒən/

      UK /'ri:dʒən/

      • Noun (Countable/Uncountable)
      • Part of a country, of the world, area, etc.
      • A part of the body
      A2TOEIC
      More
    • repeat

      US /rɪˈpit/

      UK /rɪˈpi:t/

      • Noun (Countable/Uncountable)
      • Action that is done again
      • Musical passage that is to be played again
      • Verb (Transitive/Intransitive)
      • To do something over again
      • To say something you have learned and memorized
      A2TOEIC
      More
    • require

      US /rɪˈkwaɪr/

      UK /rɪ'kwaɪə(r)/

      • Transitive Verb
      • To demand that someone does something
      • To need to do something, to make it necessary
      A2TOEIC
      More
    • result

      US /rɪˈzʌlt/

      UK /rɪ'zʌlt/

      • Noun
      • Something produced through tests or experiments
      • Final score of a competition, election or game
      • Intransitive Verb
      • To be the outcome of other causes and effects
      • To happen or exist as a consequence of something.
      A2
      More
    • same time

      US

      UK

      • Phrase
      • Occurring simultaneously or at the same point in time.
      • At the identical time as before; recurring at a fixed hour.
      • Noun
      • An equal duration or period.
      A1
      More
    • site

      US /saɪt/

      UK /saɪt/

      • Noun (Countable/Uncountable)
      • Place that is reserved for a particular activity
      • Location of building work
      • Transitive Verb
      • To place something in a particular position, area
      A2TOEIC
      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
    • strike

      US /straɪk/

      UK /straɪk/

      • Transitive Verb
      • To hit something
      • To remove or erase.
      • Noun (Countable/Uncountable)
      • A punch or hit
      • Fact of not hitting the ball when playing baseball
      A2TOEIC
      More
    • such as

      US /sʌtʃ æz/

      UK /sʌtʃ æz/

      • Preposition
      • For example; like
      A1
      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
    • telescope

      US /ˈtelɪskoʊp/

      UK /ˈtelɪskəʊp/

      • Noun
      • Tube-shaped device used to see a great distance
      • Transitive Verb
      • To shorten by compacting tubes inside each other
      C2
      More
    • threat to

      US

      UK

      • Phrase
      • A person or thing likely to cause damage or danger.
      • A statement of an intention to inflict pain, injury, damage, or other hostile action on someone in retribution for or opposition to something done or not done.
      B2
      More
    • tune

      US /tun, tjun/

      UK /tju:n/

      • Transitive Verb
      • To make adjustments to equipment to make it better
      • To adjust to be at the right musical pitch
      • Noun (Countable/Uncountable)
      • Group of musical notes that make a pleasant sound
      A2
      More
    • tuned to

      US

      UK

      • Phrasal Verb
      • To adjust a radio receiver to the frequency of a particular station.
      • To adjust or adapt to something.
      A2
      More
    • turned out

      US

      UK

      • Phrasal Verb
      • To arrive for a public event or entertainment
      • To happen to be in the end
      • Transitive Verb
      • To extinguish or switch off lights.
      A1
      More
    • unknown

      US /ˌʌnˈnoʊn/

      UK /ˌʌnˈnəʊn/

      • Adjective
      • Not being known or famous
      • Being unfamiliar or not known
      • Countable Noun
      • Person who is not famous or known by many
      B1
      More
    • validate

      US /ˈvælɪˌdet/

      UK /'vælɪdeɪt/

      • Transitive Verb
      • To show to be officially correct or allowable
      B2TOEIC
      More
    • valuable

      US /ˈvæljuəbəl, ˈvæljə-/

      UK /ˈvæljuəbl/

      • Adjective
      • Being useful or important
      • Being worth a lot of money
      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
    B2
    #lunar#moon#nasa#impact#march#monitoring

    ScienceCasts: Bright Explosion on the Moon

    0
    VoiceTube posted on 2013/05/24
    Did you know there was a massive explosion on the Moon that was bright enough to see from Earth? This ScienceCasts video dives into a historic lunar impact, showing you incredible footage and teaching you advanced vocabulary related to space events and NASA's observations. You'll gain fascinating knowledge about meteoroid streams and astronaut safety, all while boosting your English skills!

    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