/ Dictionary / Index I IDB: Meaning and Definition of Find definitions for: IDB Pronunciation: [key] industrial development bond. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Id al-Adha ID bracelet Related Content Daily Word Quiz: inutiae Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language