/ Dictionary / Index T Teamsters Union: Meaning and Definition of Find definitions for: Team'sters U"nion Pronunciation: [key] the unofficial name of the International Brotherhood of Teamsters, Chauffeurs, Warehousemen, and Helpers of America. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. teamster team teaching 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