/ Dictionary / Index O outbuilding: Meaning and Definition of Find definitions for: out•build•ing Pronunciation: (out'bil"ding), [key] — n. a detached building subordinate to a main building. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: outbuilding (Thesaurus) outbreed outburst Related Content Daily Word Quiz: dissonant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language