This week on The Missing Workbook
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Word
English Vocabulary
Pick a CEFR level (A1–C2, plus C2+ for rare words beyond the CEFR scale) — A1 is the friendliest place to start — and browse its words grouped by topic: travel, food, the body, emotions, and more. Each word shows its meaning, example sentences, and US/UK pronunciation.
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All 27,899 wordsC2+ is beyond the official CEFR scale: rare, specialist, and literary words kept for reference.
38 words
sun
A1
/sʌn/
The star that gives light and heat to the Earth and the other planets.
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star
A1
/stɑɹ/
A bright point of light seen in the night sky.
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moon
A2
/mun/
The large round object that shines in the sky at night and circles the Earth.
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universe
B1
/ˈjuːnəˌvɝs/
Everything that exists, including all of space, time, and matter.
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revolution
B2
/ˌɹɛv.əˈluː.ʃən/
A sudden, often violent attempt by people to overthrow a government and change the political system.
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launch
B1
/lɑːnt͡ʃ/
To start something new, such as a product, project, or campaign.
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atmosphere
B1
/ˈætməsˌfɪɹ/
The layer of gases that surrounds the Earth or another planet.
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satellite
B1
/ˈsætəˌlaɪt/
A machine sent into space to orbit the Earth and send back signals or information.
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gravity
C1
/ˈɡɹævəti/
The natural force that pulls objects toward the earth or toward each other.
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solar
B2
/ˈsoʊ.ləɹ/
Relating to the sun.
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radiation
B1
/ˌɹæɪ.diˈæɪ.ʃən/
Energy that travels as rays, waves, or particles, such as heat or light.
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galaxy
C2
/ˈɡɛl.ək.si/
a vast gravitationally bound system of stars, gas, dust, dark matter, and other astronomical objects
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vacuum
C1
/ˈvæ.kjuːm/
A space that contains no matter or air.
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horizon
B1
/həˈɹaɪ.zən/
The line in the distance where the sky seems to meet the land or sea.
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telescope
B2
/ˈtɛl.əˌskoʊp/
An instrument that makes distant objects look closer and larger, especially stars and planets.
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meteor
B1
/ˈmiːtiɚ/
a streak of light produced when a small piece of matter from space enters Earth's atmosphere and becomes intensely hot
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crater
B2
/ˈkɹeɪ.tɚ/
A large bowl-shaped hole in the ground made by an impact or explosion.
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aurora
C1
/əˈrɔrə/
a display of colored light in the polar sky caused by charged solar particles interacting with the upper atmosphere
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spectrum
C1
/ˈspɛktrəm/
A wide range of related ideas, opinions, qualities, or things.
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rotation
C1
/ɹoʊˈteɪʃən/
The act of turning around a central point or axis.
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zodiac
C2
/ˈzoʊ.di.æk/
the belt of the sky centered on the ecliptic through which the sun, moon, and visible planets appear to move
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astronomy
B2
/əˈstɹɑn.ə.mi/
The scientific study of the stars, planets, and the universe.
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nebula
C2
/ˈnebjələ/
an interstellar cloud of gas and dust, often associated with the formation or death of stars
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meteorite
B2
/ˈmiːtiəˌraɪt/
a piece of rock or metal from space that survives passage through an atmosphere and reaches the ground
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supernova
B2
/ˌsuː.pɚˈnoʊ.və/
an extremely energetic stellar explosion that makes a star suddenly become vastly more luminous
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astronomer
B1
/əˈstɹɑ.nə.mɚ/
A scientist who studies the stars, planets, and the universe.
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wavelength
B2
/ˈweɪvˌlɛŋ(k)θ/
a shared orientation leading to mutual understanding
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cosmology
C2
/kɑːzˈmɑː.lə.dʒi/
the scientific study of the origin, structure, development, and possible fate of the universe
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quasar
C2
/ˈkweɪ.zɑɹ/
an extremely luminous active galactic nucleus powered by matter falling into a supermassive black hole
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crescent
C2+
/ˈkrɛsənt/
a curved shape like the partly lit moon
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cosmos
C2+
/ˈkɑzmoʊs/
the universe regarded as an ordered, harmonious whole
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nadir
C2+
/ˈneɪdɚ/
the lowest or most unsuccessful point; the point opposite the zenith
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observatory
C2+
/əbˈzɝvətɔri/
a building equipped for observing astronomical or natural phenomena
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constellation
C2+
/ˌkɑnstəˈleɪʃən/
a recognized pattern of stars, or any grouping of related things
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zenith
C2+
/ˈziː.nɪθ/
the highest point reached; the point in the sky directly overhead
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exoplanet
C1
/ˈɛksoʊˌplænət/
a planet located outside our solar system
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spacecraft
B2
/ˈspeɪsˌkɹæft/
a vehicle designed to travel or operate in outer space
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blast off
B2
to launch or rise with great force, especially at the start of a rocket flight
Phrasal verb
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