1. lights mounted on the front of a vehicle to illuminate the road ahead
2. portable lights worn on the head or attached to a helmet

Examples

• The car’s headlamps cut through the fog on the dark highway.
• She turned on her headlamps before driving into the tunnel.
• The miner adjusted his headlamp before descending into the shaft.
• Hikers should carry headlamps for early morning or evening trails.
• The mechanic replaced both headlamps after the accident.
• His headlamp provided enough light to read the map in the tent.