/ Dictionary / Index D deb: Meaning and Definition of Find definitions for: deb Pronunciation: (deb), [key] — n. a debutante. deb. Pronunciation: [key] debenture. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: deb (Thesaurus) deave debacle Related Content Daily Word Quiz: arid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language