Pronunciation: /ˈaʊtər speɪs/
noun a vast expanse that begins where the earth's atmosphere ends
A1 Outer space is the area beyond Earth's atmosphere.
A2 Astronauts wear special suits when they travel to outer space.
B1 Scientists study the effects of zero gravity in outer space.
B2 Space agencies around the world collaborate on missions to explore outer space.
C1 The vastness of outer space is both beautiful and mysterious.
C2 Advanced telescopes allow us to observe distant galaxies in outer space.
adjective relating to or existing in the outer regions of the atmosphere or beyond
A1 The astronauts went to outer space.
A2 Scientists study the stars and planets in outer space.
B1 Exploring outer space requires advanced technology and training.
B2 Space agencies around the world collaborate on missions to outer space.
C1 The vastness of outer space is both beautiful and mysterious.
C2 Astronomers use powerful telescopes to observe distant galaxies in outer space.
formal Scientists study the vast expanse of outer space to better understand the universe.
informal Have you ever wondered what it would be like to travel through outer space?
slang Outer space is like the ultimate road trip destination, dude.
figurative Her mind often drifts off into outer space during boring meetings.
outer spaces
more outer space
most outer space
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has been outer space
is being outer space
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outer space
to outer space
outer spacing
outer spaced