/ Dictionary / Index T thug: Meaning and Definition of Find definitions for: thug Pronunciation: (thug), [key] — n. a cruel or vicious ruffian, robber, or murderer. (sometimes cap.) one of a former group of professional robbers and murderers in India who strangled their victims. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: thug (Thesaurus) thud thuggee Related Content Daily Word Quiz: soporific Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language