traffic jam — On a Road Trip traffic jam /ˈtræfɪk dʒæm/ noun CEFR A2 A long line of vehicles that cannot move because of too much traffic. “There was a big traffic jam on the motorway.” Related words in this scene carroaddrivemapfuelpetrolpetrol stationtankenginewheelsteering wheelseatbelttrafficmotorwayjunctionexitspeed limitmirrorbrakegeartyretripbreakdowngarageparkingparkhornsnackjamtollmotel Practice this word Create worksheet