Vocabulary

  • on earth: Used to emphasize a question expressing surprise or anger.
  • evidence of: Facts, objects, or signs that make you believe that something is true.
  • on the surface: Appearing to be true or real until examined more closely.
  • for life: For the duration of one's life; permanently.
  • look for: To try to find a thing or person that is lost
  • by now: At the present time or already; before the present.
  • for example: As an illustration or instance.
  • have to: Must do
  • look at: To use your eyes to focus on something
  • up close and personal: Very near or intimately, often in detail or physically close.
  • instead of: When one thing is replaced by another
  • in places: In some locations but not others
  • in the future: At a later time; in times to come.
  • in order to: For the purpose of; with the aim of.
  • in time: Eventually; after a period of time.
  • to do with: To be about something; concern
  • based on: To use something as the foundation or starting point for something else.
  • in the first place: To begin with; as the first point or consideration.
  • used up: To use all of; consume
  • on board: Being on a ship, plane, or other vehicle
  • know about: To have information or understanding of a subject or situation.
  • find out about: To look for information to learn about it
  • due to: Because of; owing to
  • of course: Sure ; Certainly
  • ingredient: Food item used when making a meal or drink
  • evidence: Factual proof that helps to establish the truth
  • positive: Showing agreement or support for something
  • negative: The opposite to a positive electrical charge
  • evolve: To develop certain features
  • completely: In every way or as much as possible
  • skeptical: Doubting that something is true/probable/useful
  • experiment: Test performed to assess new ideas or theories
  • suspect: Person thought to have committed a crime
  • tiny: Very, very small
  • state: Region within a country, with its own government
  • surface: To give (road) a top layer
  • grain: Seeds of plants used for food
  • result: Something produced through tests or experiments
  • curiosity: Something unusual and perhaps worthy of collecting
  • planet: One of the bodies that orbit the sun
  • survive: To continue to live despite illness or trouble
  • introduce: To open an essay to set the scene
  • scoop: To dig out for a hole with a tool or hands
  • vacuum: Space with absolutely no air in it
  • produce: Fresh foods such as fruits and vegetables
  • layer: One of several sheets of a material or object
  • detect: To discover or identify the presence of something
  • soil: Conditions in which something develops
  • radiation: Energy transmitted as rays, waves or particles
  • react: To change when mixing with other chemicals
  • dioxide: An oxide containing two oxides per molecule
  • correspondent: Journalist, as one reporting from other countries
  • carbon: Chemical element with an atomic number of 6
  • haven: Place where people can feel safe and happy
  • mineral: Substance naturally formed in the ground
  • bill: Plan for a new law being discussed by a government
  • label: A (luxury) brand owned by a company
  • spatial: About space
  • capsule: Tube-shaped plastic casing filled with medicine
  • place: To put someone in a particular type of situation
  • definitive: Clear and leaving no further question
  • system: Set of organized, planned ideas that work together
  • mission: A task or role someone is given to do
  • detail: Small part of something; tiny fact
  • promise: To say you will certainly do something
  • cubicle: Workspace with low walls within an office
  • microscopic: Too small to be seen with the eyes
  • solar: Concerning the sun, or its heat
  • conclude: To finish or cause to finish; end
  • restrict: To prevent a person from doing something
  • dilute: To make something weaker or less efficient
  • space: Empty area kept for a specific reason, like a car
  • land: Region or country
  • find: To become aware of something that is happening
  • difficult: Hard; not easy; you need to work hard to do it
  • bombard: To attack with weapons
  • return: To hit something back to the other player or team
  • propulsion: Forward movement often under power
  • spacecraft: Vehicle capable of traveling to outer space
  • microbial: Concerning, involving or caused by being microbes
  • radioactive: Emitting harmful energy from nuclear activity
  • planetary: Concerning the orbital characteristics of a planet
  • bacterial: Concerning or caused by bacteria
  • hardy: Able to survive cold weather, hard times
Placeholder Image

    Preparing usage notes, please check back later

  • not found vocabularyNo vocabulary matches your filters
    • bacterial

      US /bæk'tɪərɪrl/

      UK /bæk'tɪərɪəl/

      • Adjective
      • Concerning or caused by bacteria
      B2
      More
    • based on

      US

      UK

      • Phrasal Verb
      • To use something as the foundation or starting point for something else.
      • Preposition
      • Using something as the main idea or foundation.
      • Relying on something as evidence or justification.
      A1
      More
    • bill

      US /bɪl/

      UK /bɪl/

      • Noun
      • Plan for a new law being discussed by a government
      • Sign or poster advertising something
      • Transitive Verb
      • To request payment by handing over an invoice
      A2TOEIC
      More
    • bombard

      US /bɑmˈbɑrd, ˈbɑmˌbɑrd/

      UK /bɒm'bɑ:d/

      • Transitive Verb
      • To attack with weapons
      • To criticize heavily
      C1
      More
    • by now

      US /baɪ naʊ/

      UK /bai nau/

      • Phrase
      • At the present time or already; before the present.
      A2
      More
    • capsule

      US /ˈkæpsul/

      UK /'kæpsju:l/

      • Countable Noun
      • Tube-shaped plastic casing filled with medicine
      • Part of a space craft where people live and work
      • Adjective
      • Modifier a small version, with only key items
      B2
      More
    • carbon

      US /ˈkɑrbən/

      UK /'kɑ:bən/

      • Uncountable Noun
      • Chemical element with an atomic number of 6
      B1
      More
    • conclude

      US /kənˈklud/

      UK /kənˈklu:d/

      • Verb (Transitive/Intransitive)
      • To finish or cause to finish; end
      • To arrive at a judgment or opinion
      A2
      More
    • correspondent

      US /ˌkɔrɪˈspɑndənt, ˌkɑr-/

      UK /ˌkɒrəˈspɒndənt/

      • Countable Noun
      • Journalist, as one reporting from other countries
      B1
      More
    • cubicle

      US /ˈkjubɪkəl/

      UK /ˈkju:bɪkl/

      • Countable Noun
      • Workspace with low walls within an office
      C1
      More
    • curiosity

      US /ˌkjʊriˈɑsɪti/

      UK /ˌkjʊərɪ'ɒsətɪ/

      • Noun (Countable/Uncountable)
      • Something unusual and perhaps worthy of collecting
      • Eager desire to learn more about something
      B1
      More
    • definitive

      US /dɪˈfɪnɪtɪv/

      UK /dɪˈfɪnətɪv/

      • Adjective
      • Clear and leaving no further question
      • Considered to be the best and most authoritative of its kind.
      B2
      More
    • detect

      US /dɪˈtɛkt/

      UK /dɪˈtekt/

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

      US /daɪˈlut, dɪ-/

      UK /daɪˈlu:t/

      • Transitive Verb
      • To make something weaker or less efficient
      B2
      More
    • dioxide

      US /daɪˈɑksaɪd/

      UK /daɪˈɒksaɪd/

      • Noun
      • An oxide containing two oxides per molecule
      B2
      More
    • due to

      US /du tu/

      UK /dju: tu:/

      • Preposition
      • Because of; owing to
      • Adjective
      • Attributable to; caused by.
      A1
      More
    • evidence of

      US

      UK

      • Phrase
      • Facts, objects, or signs that make you believe that something is true.
      • Something that shows that something else exists or is true.
      A1
      More
    • evolve

      US /ɪˈvɑlv/

      UK /ɪ'vɒlv/

      • Verb (Transitive/Intransitive)
      • To develop certain features
      • To develop or change slowly over time
      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
    • find out about

      US

      UK

      • Phrasal Verb
      • To look for information to learn about it
      A1
      More
    • for example

      US

      UK

      • Phrase
      • As an illustration or instance.
      More
    • for life

      US /fɔr laɪf/

      UK /fɔ: laif/

      • Phrase
      • For the duration of one's life; permanently.
      • To support someone for the duration of their life.
      • Adjective
      • Being a member for the entirety of one's life.
      A1
      More
    • grain

      US /ɡren/

      UK /greɪn/

      • Noun (Countable/Uncountable)
      • Seeds of plants used for food
      • Natural pattern in something, e.g. wood
      B1TOEIC
      More
    • hardy

      US /ˈhɑrdi/

      UK /'hɑ:dɪ/

      • Adjective
      • Able to survive cold weather, hard times
      • Bold; brave.
      • Proper Noun
      • A surname.
      B2
      More
    • have to

      US /hæv tu/

      UK /ˈhæv tə/

      • Auxiliary Verb
      • Must do
      A1
      More
    • in order to

      US /ɪn ˈɔrdɚ tu/

      UK /in ˈɔ:də tu:/

      • Preposition
      • For the purpose of; with the aim of.
      • Phrase
      • In a specific sequence or arrangement.
      • With the aim of; for the purpose of.
      C1
      More
    • in places

      US

      UK

      • Phrase
      • In some locations but not others
      A1
      More
    • in the first place

      US

      UK

      • Phrase
      • To begin with; as the first point or consideration.
      • From the beginning; initially.
      A1
      More
    • in the future

      US /ɪn ði ˈfjutʃɚ/

      UK /in ðə ˈfju:tʃə/

      • Phrase
      • At a later time; in times to come.
      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
    • ingredient

      US /ɪnˈɡridiənt/

      UK /ɪnˈgri:diənt/

      • Noun (Countable/Uncountable)
      • Food item used when making a meal or drink
      • Quality necessary to be something to work well
      B1TOEIC
      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
    • know about

      US /noʊ əˈbaʊt/

      UK /nəʊ əˈbaut/

      • Phrasal Verb
      • To have information or understanding of a subject or situation.
      More
    • label

      US /ˈlebəl/

      UK /'leɪbl/

      • Noun (Countable/Uncountable)
      • A (luxury) brand owned by a company
      • A word or term used to describe a person, thing
      • Transitive Verb
      • To use a term to describe, often negatively
      • To attach material to identify something
      A2
      More
    • layer

      US /ˈleɚ/

      UK /ˈleiə/

      • Noun (Countable/Uncountable)
      • One of several sheets of a material or object
      • A covering of something spread over a surface.
      • Transitive Verb
      • To put things one on top of another
      B1TOEIC
      More
    • look at

      US /lʊk æt/

      UK /luk æt/

      • Phrasal Verb
      • To use your eyes to focus on something
      • To focus your eyes on something carefully
      A1
      More
    • look for

      US /lʊk fɔr/

      UK /luk fɔ:/

      • Phrasal Verb
      • To try to find a thing or person that is lost
      • To expect or anticipate something.
      A1
      More
    • microbial

      US /maɪ'kroʊbɪrl/

      UK /maɪ'krəʊbɪəl/

      • Adjective
      • Concerning, involving or caused by being microbes
      C1
      More
    • microscopic

      US /ˌmaɪkrəˈskɑ:pɪk/

      UK /ˌmaɪkrəˈskɒpɪk/

      • Adjective
      • Too small to be seen with the eyes
      • Relating to or involving the use of a microscope.
      B1
      More
    • mineral

      US /ˈmɪnərəl/

      UK /'mɪnərəl/

      • Noun (Countable/Uncountable)
      • Substance naturally formed in the ground
      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
    • negative

      US /ˈnɛɡətɪv/

      UK /'neɡətɪv/

      • Noun
      • The opposite to a positive electrical charge
      • In grammar, containing words such as 'no' or 'not'
      • Adjective
      • Being harmful, unwanted or unhelpful
      • In mathematics, being less than zero
      A2
      More
    • of course

      US /ʌv kɔː(r)s/

      UK /ɔv kɔː(r)s/

      • Adverb
      • Sure ; Certainly
      • Phrase
      • For sure; certainly
      A2
      More
    • on board

      US /ɑn bɔrd/

      UK /ɔn bɔ:d/

      • Phrase
      • Being on a ship, plane, or other vehicle
      • Adverb
      • On or in a ship, aircraft, train, or other vehicle
      A1
      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 the surface

      US /ɑn ði ˈsɚfəs/

      UK /ɔn ðə ˈsə:fis/

      • Phrase
      • Appearing to be true or real until examined more closely.
      • Located on the outer part or uppermost layer of something.
      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
    • planetary

      US /ˈplænɪˌtɛri/

      UK /ˈplænətri/

      • Adjective
      • Concerning the orbital characteristics of a planet
      B2
      More
    • positive

      US /ˈpɑzɪtɪv/

      UK /ˈpɒzətɪv/

      • Adjective
      • Showing agreement or support for something
      • Being sure about something; knowing the truth
      • Noun
      • A photograph in which light areas are light and dark areas are dark
      A2
      More
    • propulsion

      US /prəˈpʌlʃən/

      UK /prəˈpʌlʃn/

      • Uncountable Noun
      • Forward movement often under power
      C1
      More
    • radiation

      US /ˌrediˈeʃən/

      UK /ˌreɪdiˈeɪʃn/

      • Noun (Countable/Uncountable)
      • Energy transmitted as rays, waves or particles
      • Harmful waves of energy from nuclear activity
      B1
      More
    • radioactive

      US /ˌredioˈæktɪv/

      UK /ˌreɪdɪəʊ'æktɪv/

      • Adjective
      • Emitting harmful energy from nuclear activity
      B2
      More
    • react

      US /riˈækt/

      UK /rɪ'ækt/

      • Intransitive Verb
      • To change when mixing with other chemicals
      • To behave or make a change in a particular way
      A2
      More
    • restrict

      US /rɪˈstrɪkt/

      UK /rɪ'strɪkt/

      • Transitive Verb
      • To prevent a person from doing something
      • To keep someone or something within certain physical boundaries.
      A2
      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
    • scoop

      US /skup/

      UK /sku:p/

      • Transitive Verb
      • To dig out for a hole with a tool or hands
      • Noun (Countable/Uncountable)
      • An amount of e.g. ice cream taken from a whole
      • An important news story broken for the first time
      B2
      More
    • skeptical

      US /'skeptɪkəl/

      UK /'skeptɪkəl/

      • Adjective
      • Doubting that something is true/probable/useful
      C2
      More
    • soil

      US /sɔɪl/

      UK /sɔɪl/

      • Uncountable Noun
      • Conditions in which something develops
      • Mix of natural material in which plants grow
      • Transitive Verb
      • To get or become dirty
      B1
      More
    • solar

      US /ˈsolɚ/

      UK /'səʊlə(r)/

      • Adjective
      • Concerning the sun, or its heat
      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
    • spatial

      US /ˈspeʃəl/

      UK /ˈspeɪʃl/

      • Adjective
      • About space
      B1
      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
    • survive

      US /sɚˈvaɪv/

      UK /sə'vaɪv/

      • Intransitive Verb
      • To continue to live despite illness or trouble
      A2TOEIC
      More
    • suspect

      US /səˈspɛkt/

      UK /sə'spekt/

      • Noun
      • Person thought to have committed a crime
      • Transitive Verb
      • To consider someone is the one guilty of a crime
      • To doubt or lack trust
      A2TOEIC
      More
    • tiny

      US /ˈtaɪni/

      UK /'taɪnɪ/

      • Adjective
      • Very, very small
      A2
      More
    • to do with

      US

      UK

      • Phrasal Verb
      • To be about something; concern
      A1
      More
    • up close and personal

      US /ʌp kloʊs ənd ˈpɜrsənəl/

      UK /ʌp kləuz ənd ˈpɜ:snəl/

      • other
      • Very near or intimately, often in detail or physically close.
      B2
      More
    • used up

      US

      UK

      • Phrasal Verb
      • To use all of; consume
      • Adjective
      • Exhausted or depleted.
      A1
      More
    • vacuum

      US /ˈvækjuəm, -jum, -jəm/

      UK /'vækjʊəm/

      • Noun (Countable/Uncountable)
      • Space with absolutely no air in it
      • Cleaning machine with engine that sucks up dirt
      • Transitive Verb
      • To clean (a floor) using a sucking machine
      • To seal something in a vacuum.
      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
    B1US
    #life#derek#earth#ken#lander#martian

    The Next Mission to Mars: Mars 2020

    0
    Ntiana posted on 2017/11/23
    Ever wondered what it takes to explore Mars? This video gives you a behind-the-scenes look at the Mars 2020 mission, packed with fascinating details about finding signs of life! You'll pick up some awesome advanced vocabulary related to space exploration and learn about the incredible work happening at JPL.

    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