Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English


English definition of “space”


noun [U] (BEYOND EARTH)    /speɪs/
B1 the empty area outside the Earth's atmosphere , where the planets and the stars are: space exploration / travel a space rocket Who was the first human being in space/the first to go into space?The Earth and outer space - general words
(Definition of space noun (BEYOND EARTH) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of space

Definitions of “space” in other dictionaries

Word of the Day

best man

a male friend or relation of the bridegroom who stands with him and helps him during a marriage ceremony

Word of the Day


Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More