/ Dictionary / Index D D.E.I.: Meaning and Definition of Find definitions for: D.E.I. Pronunciation: [key] Dutch East Indies. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. dehypnotize Deianira Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language