/ Dictionary / Index S spacey: Meaning and Definition of Find definitions for: spac•ey Pronunciation: (spā'sē), [key] — spac•i•er, spac•i•est. spaced-out (def. 2). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: spacey (Thesaurus) space writer spacial Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language