/ Dictionary / Index T tour d'horizon*: Meaning and Definition of Find definitions for: tour d'ho•ri•zon Pronunciation: (tr dô-rē-zôn'), [key] — French. French. a general survey; overview. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Tour-de-France Touré Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language