/ Dictionary / Index S sleep-out: Meaning and Definition of Find definitions for: sleep-out Pronunciation: (slēp'out"), [key] — adj. live-out. —n. a person who lives elsewhere than at the place of employment. an act or instance of sleeping outdoors. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: sleep-out (Thesaurus) sleepless sleepover 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