verb (used with object), spaced, spac·ing.


of, relating to, or concerned with outer space or deep space: a space mission.
designed for or suitable to use in the exploration of outer space or deep space: space tools; specially packaged space food for astronauts.

Nearby words

  1. sp.ed.,
  2. spa,
  3. spaak,
  4. spaak, paul henri,
  5. spaatz,
  6. space age,
  7. space bar,
  8. space biology,
  9. space blanket,
  10. space cadet

Origin of space

1250–1300; Middle English (noun) < Old French espace < Latin spatium

Related formsspac·er, nounmis·space, verb (used with object), mis·spaced, mis·spac··space, verb (used with object), re·spaced, re·spac·ing. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for space out



the unlimited three-dimensional expanse in which all material objects are locatedRelated adjective: spatial
an interval of distance or time between two points, objects, or events
a blank portion or area
  1. unoccupied area or roomthere is no space for a table
  2. (in combination)space-saving Related adjective: spacious
freedom to do what a person wishes to for his or her own personal development
  1. the region beyond the earth's atmosphere containing the other planets of the solar system, stars, galaxies, etc; universe
  2. (as modifier)a space probe; space navigation
  1. the region beyond the earth's atmosphere occurring between the celestial bodies of the universe. The density is normally negligible although cosmic rays, meteorites, gas clouds, etc, can occur. It can be divided into cislunar space (between the earth and moon), interplanetary space, interstellar space, and intergalactic space
  2. (as modifier)a space station; a space simulator
a seat or place, as on a train, aircraft, etc
  1. a piece of metal, less than type-high, used to separate letters or words in hot-metal printing
  2. any of the gaps used to separate letters, words, or lines in photocomposition, desktop publishing, etc
music any of the gaps between the lines that make up the staff
maths a collection of unspecified points having properties that obey a specified set of axiomsEuclidean space
Also called: spacing telegraphy the period of time that separates complete letters, digits, and other characters in Morse code

verb (tr)

to place or arrange at intervals or with spaces between
to divide into or by spacesto space one's time evenly
printing to separate (letters, words, or lines) by the insertion of spaces

Word Origin for space

C13: from Old French espace, from Latin spatium

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

Word Origin and History for space out
Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for space out




A particular area, extent, or cavity of the body.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for space out



The region of the universe beyond Earth's atmosphere.♦ The part of this region within the solar system is known as interplanetary space.♦ The part of this region beyond the solar system but within the Milky Way or within another galaxy is known as interstellar space.♦ The part of this region between the Milky Way and other galaxies is known as intergalactic space.
The familiar three-dimensional region or field of everyday experience.
Mathematics A mathematical object, typically a set of sets, that is usually structured to define a range across which variables or other objects (such as a coordinate system) can be defined.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Idioms and Phrases with space out

space out

Stupefy or disorient, as if or from a drug. For example, This medication spaces me out so I can't think clearly, or I wonder what those kids are on—they look totally spaced out. [1960s] Also see zone out.


In addition to the idiom beginning with space

  • space out

also see:

  • breathing space
  • take up space
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.