camouflage vs obscure

camouflage

verb
  • To hide or disguise something by covering it up or changing the way it looks. 

noun
  • A pattern on clothing consisting of irregularly shaped patches that are either greenish/brownish, brownish/whitish, or bluish/whitish, as used by ground combat forces. 

  • The use of natural or artificial material on personnel, objects, or tactical positions with the aim of confusing, misleading, or evading the enemy. 

  • The act of disguising. 

  • Resemblance of an organism to its surroundings for avoiding detection. 

  • A disguise or covering up. 

  • Clothes made from camouflage fabric, for concealment in combat or hunting. 

obscure

verb
  • To hide, put out of sight etc. 

  • To render obscure; to darken; to make dim; to keep in the dark; to hide; to make less visible, intelligible, legible, glorious, beautiful, or illustrious. 

adj
  • Dark, faint or indistinct. 

  • Difficult to understand. 

  • Not well-known. 

  • Hidden, out of sight or inconspicuous. 

  • Unknown or uncertain; unclear. 

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