/ Dictionary / Index T taction: Meaning and Definition of Find definitions for: tac•tion Pronunciation: (tak'shun), [key] — n. touch; contact. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. tactile corpuscle tactless Related Content Daily Word Quiz: diligent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language