/ Dictionary / Index D debacle: Meaning and Definition of Find definitions for: de•ba•cle Pronunciation: (dā-bä'kul, -bak'ul, du-), [key] — n. a general breakup or dispersion; sudden downfall or rout: The revolution ended in a debacle. a complete collapse or failure. a breaking up of ice in a river. Cf. embacle. a violent rush of waters or ice. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: debacle (Thesaurus) deb debag Related Content Daily Word Quiz: impetuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language