/ Dictionary / Index T traffic jam: Meaning and Definition of Find definitions for: traf'fic jam" Pronunciation: [key] jam (def. 16). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. traffic island traffic light Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language