gray vs nonblack

gray

adj
  • Having a color somewhere between white and black, as the ash of an ember. 

  • Gray-haired. 

  • Old. 

  • Relating to older people. 

  • Having an indistinct, disputed or uncertain quality. 

  • Dreary, gloomy. 

noun
  • An animal or thing of grey colour, such as a horse, badger, or salmon. 

  • an extraterrestrial humanoid with grayish skin, bulbous black eyes, and an enlarged head. 

  • An achromatic colour intermediate between black and white. 

  • A penny with a tail on both sides, used for cheating. 

  • In the International System of Units, the derived unit of absorbed dose of radiation (radiation absorbed by a patient); one joule of energy absorbed per kilogram of the patient's mass. Symbol: Gy 

verb
  • To cause to become gray. 

  • To turn progressively older, alluding to graying of hair through aging (used in context of the population of a geographic region) 

  • To become gray. 

  • To give a soft effect to (a photograph) by covering the negative while printing with a ground-glass plate. 

nonblack

adj
  • Not black in colour. 

  • Not of African descent; not racially black. 

noun
  • A nonblack person. 

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