/ Dictionary / Index T tour of duty: Meaning and Definition of Find definitions for: tour' of du'ty Pronunciation: [key] tour (def. 5). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. tournois Tours Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language