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Synonyms

outer space

American  

noun

  1. space beyond the atmosphere of the earth.

  2. deep space.


outer space British  

noun

  1. (not in technical usage) any region of space beyond the atmosphere of the earth

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of outer space

First recorded in 1875–80

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

"Ductile intermetallics will significantly boost our capabilities for designing advanced materials for aerospace and outer space, energy and defense applications," Zhang said.

From Science Daily Jul. 31, 2026

Meta Platforms is the latest technology company to see outer space as a potential solution to the artificial-intelligence power crunch.

From MarketWatch Apr. 27, 2026

Their meeting was quickly interrupted by a message in the Microsoft Teams chat flagging that Nutella was in outer space.

From The Wall Street Journal Apr. 9, 2026

The animated sequel from Universal and Illumination Studios tracks the adventures of Mario, Luigi and friends in outer space, where they must save Princess Rosalina.

From Barron's Apr. 5, 2026

Or figuring out ways for people to live in outer space, so they wouldn’t be too crowded on Earth and chop down beautiful woods just for houses.

From "Among the Hidden" by Margaret Peterson Haddix

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