/ Dictionary / Index A a due: Meaning and Definition of Find definitions for: a du•e Pronunciation: (ä d'āIt.ä d'e), [key] — Music. Music. together; in unison. divisi. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ADTS adularescent Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language