/ Dictionary / Index T traffic island: Meaning and Definition of Find definitions for: traf'fic is"land Pronunciation: [key] a raised or marked-off area between lanes of a roadway, used by pedestrians to get out of the flow of traffic, as a place for traffic signals, for separating lanes, etc. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. traffic engineering traffic jam Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language