/ Dictionary / Index T traffic circle: Meaning and Definition of Find definitions for: traf'fic cir"cle Pronunciation: [key] a circular arrangement constructed at the intersection of two or more roads in order to facilitate the passage of vehicles from one road to another. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. trafficator traffic cop Related Content Daily Word Quiz: impetuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language