gear — On a Road Trip gear /gɪə/ noun CEFR A2 A part of a car's engine system used to control speed. “She changed gear as the car went up the hill.” Related words in this scene carroaddrivemapfuelpetrolpetrol stationtankenginewheelsteering wheelseatbelttraffictraffic jammotorwayjunctionexitspeed limitmirrorbraketyretripbreakdowngarageparkingparkhornsnackjamtollmotel Practice this word Create worksheet