/ Dictionary / Index O overshirt: Meaning and Definition of Find definitions for: o•ver•shirt Pronunciation: (ō'vur-shûrt"), [key] — n. a pullover sport shirt, worn outside the waistband of a skirt or pair of slacks. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. overshine overshoe Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language