/ Dictionary / Index T TWU: Meaning and Definition of Find definitions for: TWU Pronunciation: [key] Transport Workers Union of America. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. twp. TWX Related Content Daily Word Quiz: supine Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language