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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.

Outer space is chirping, and no one quite knows why.

From Salon • Oct. 18, 2021

Outer space might now be embarked on a similar journey from frontier to big business.

From New York Times • Jul. 21, 2021

Outer space in the movie is so dark it almost feels claustrophobic rather than expansive.

From Slate • Apr. 5, 2019

Outer space is under threat, and it is high time for the international community to make sure that the threat does not become reality.

From Washington Post • Jun. 18, 2018

Outer space societies shall protect from abuse the environment and natural resources of Earth and space.

From The Universe — or Nothing by Moldeven, Meyer

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.