Dictionary.com
definitions
  • synonyms

deep space

See more synonyms on Thesaurus.com
noun
  1. space beyond the limits of the solar system.
Show More

Origin of deep space

First recorded in 1950–55
Also called outer space.
Related formsdeep-space, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for deep space

deep space

noun
  1. any region of outer space beyond the system of the earth and moon
Show More
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