/ Dictionary / Index D debenture: Meaning and Definition of Find definitions for: de•ben•ture Pronunciation: (di-ben'chur), [key] — n. See a certificate of drawback issued at a custom house. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: debenture (Thesaurus) de bene esse debenture bond Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language