headlight vs lamp

headlight

noun
  • 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. 

  • A woman's breast. 

  • A jewel; especially a diamond. 

  • Lysergic acid diethylamide (LSD). 

  • A woman's erect nipples, partially masked by clothing. 

lamp

noun
  • A device that generates heat, light or other radiation. Especially an electric light bulb. 

  • A device containing oil, burnt through a wick for illumination; an oil lamp. 

  • A piece of furniture holding one or more electric light sockets. 

verb
  • To hunt at night using a lamp; see lamping. 

  • To make into a table lamp, said of a vase or urn, etc. 

  • To hang out or chill; to do nothing in particular. 

  • To hit, clout, belt, wallop. 

How often have the words headlight and lamp occurred in a corpus of books? (source: Google Ngram Viewer )