corps vs platoon

corps

noun
  • An organized group of people united by a common purpose. 

  • A battlefield formation composed of two or more divisions. 

platoon

noun
  • A group of children in the platoon grouping education system. 

  • A unit of thirty to forty soldiers typically commanded by a lieutenant and forming part of a company. 

  • A group of self-driving vehicles travelling in a close convoy and communicating electronically with each other. 

verb
  • To specialize in a particular position or playing style. 

  • Of self-driving vehicles: to travel in a close convoy, each vehicle communicating electronically with the others. 

  • To alternate starts with a teammate of opposite handedness, depending on the handedness of the opposing pitcher 

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