/ Dictionary / Index O outer space: Meaning and Definition of Find definitions for: out'er space' Pronunciation: [key] space beyond the atmosphere of the earth. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. outersole outerwear Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language