/ Dictionary / Index I I.B.T.C.W.H.: Meaning and Definition of Find definitions for: I.B.T.C.W.H. Pronunciation: [key] International Brotherhood of Teamsters, Chauffeurs, Warehousemen, and Helpers of America. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Ibsenism ibuprofen Related Content Daily Word Quiz: ontiguous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language