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View synonyms for outer space

outer space

noun

  1. space beyond the atmosphere of the earth.

outer space

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
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Word History and Origins

Origin of outer space1

First recorded in 1875–80

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