/ Dictionary / Index T T.W.I.M.C.: Meaning and Definition of Find definitions for: T.W.I.M.C. Pronunciation: [key] to whom it may concern. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. twill weave twin Related Content Daily Word Quiz: blithesome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language