/ Dictionary / Index D dress-up: Meaning and Definition of Find definitions for: dress-up Pronunciation: (dres'up"), [key] — adj. being an occasion, situation, etc., for which one must be somewhat formally well-dressed: the first dress-up dance of the season. —n. Usually, Wear your dress-ups for the reception. a person's best clothes:Wear your dress-ups for the reception. accessories or other added features:a car with custom dress-ups. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: dress-up (Thesaurus) dress uniform dressy Related Content Daily Word Quiz: eureka Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language