/ Dictionary / Index B big house: Meaning and Definition of Find definitions for: big' house" Pronunciation: [key] — Slang. Slang. a penitentiary (usually prec. by the). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Bighorn Mountains bight Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language