canteen vs mess kit

canteen

noun
  • A water bottle, flask, or other vessel, typically used by a soldier or camper as a bottle for carrying water or liquor for drink 

  • A small cafeteria or snack bar, especially one in a military establishment, school, or place of work. 

  • A temporary or mobile café used in an emergency or on a film location etc. 

  • A military mess kit. 

  • A box with compartments for storing eating utensils, silverware etc. 

mess kit

noun
  • A compact set of eating utensils (including plate, cup, utensils) and sometimes cooking pots etc, used in the field by soldiers and by campers. 

  • A formal uniform, worn for occasions such as mess dinners. 

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