A tail light is the red lamp at the back of a vehicle. Replace the tail light.
It burns dimly all the time and brightly when the brake is pressed, from the same lamp. A tail light out is the commonest reason a car is stopped at night.
1nountail lightThe red lamp at the back of a vehicle.
“One tail light had been out for a month.”
tail light is a lamp.
taillight comes from tail + light.
Etymology from Wiktionary, CC BY-SA
Practised in Vehicles & Machines