headlight

noun

1. 1

   A bright light, with a lens and reflector, on the front of a motor vehicle (or originally a ship or train), designed to illuminate the road when driving at night; normally one of a pair.

2. 2

   (chiefly in the plural) A woman's breast.

3. 3

   (chiefly in the plural) A woman's erect nipples, partially masked by clothing.

4. 4

   (chiefly in the plural) A jewel; especially a diamond.

5. 5

   (chiefly in the plural) Lysergic acid diethylamide (LSD).