camouflage vs let out

camouflage

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. 

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

let out

verb
  • Of a school: to finish for the day or term, allowing the pupils to go home. 

  • To disclose. 

  • To rent out. 

  • Of sound, to emit. 

  • To allow to operate at higher speed by adjusting controls. 

  • To release. 

  • To enlarge by adjusting one or more seams. 

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