/ Dictionary / Index D disuse: Meaning and Definition of Find definitions for: dis•use Pronunciation: (n.dis-ys'v.dis-yz'), [key] — n., v., -used, -us•ing. —n. discontinuance of use or practice: Traditional customs are falling into disuse. —v.t. to cease to use. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: disuse (Thesaurus) disunity disutility Related Content Daily Word Quiz: impetuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language