/ Dictionary / Index D decresc.: Meaning and Definition of Find definitions for: decresc. Pronunciation: [key] — Music. Music. decrescendo. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. decrepitude decrescendo 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