/ Dictionary / Index S sports jacket: Meaning and Definition of Find definitions for: sports' jack"et Pronunciation: [key] a jacket, often of textured wool or colorful pattern, with a collar, lapels, long sleeves, and buttons in the front, cut somewhat fuller than the jacket of a business suit, worn with slacks for informal occasions. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sport shirt sportsman Related Content Daily Word Quiz: topography Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language