/ Dictionary / Index D de d in d: Meaning and Definition of Find definitions for: de d in d Pronunciation: [key] (in prescriptions) from day to day. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. dedifferentiation de dolo malo Related Content Daily Word Quiz: reclusive Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language