| n. | 1. | (Engin.) A light, with a powerful reflector, placed at the front of a vehicle such as an automobile, truck, locomotive etc., to throw light on the road or track ahead of the vehicle at night, or in going through a dark tunnel; a |
| Noun | 1. | headlight - a powerful light with reflector; attached to the front of an automobile or locomotive Synonyms: headlamp |