outer space

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noun

space beyond the atmosphere of the earth.

deep space.

Origin of outer space

First recorded in 1875–80

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Related Words for outer space

cosmos, infinity

British Dictionary definitions for outer space

outer space

noun

(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