/ Dictionary / Index U union suit: Meaning and Definition of Find definitions for: un'ion suit" Pronunciation: [key] a close-fitting, knitted undergarment combining shirt and drawers in one piece and often having a drop seat. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. union shop Uniontown Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language