canteen vs dropbox

canteen

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

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

dropbox

noun
  • A box wherein objects can be deposited by one person for later collection by another. 

  • A computer folder to which files may be dragged and dropped and from which users of other computers on the network can access those files. 

  • An enhancement to a loom that allows patterns of multiple colors to be woven from the same loom. 

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