floodlight vs headlight

floodlight

noun
  • Powerful artificial illumination with a broad beam, especially in a series of units on pylons used to illuminate a sports ground. 

  • A projector of a bright beam of light for use in theatres and studios; a flood 

verb
  • To enlighten or illuminate with floodlight(s). 

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. 

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