dropbox vs jewel box

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. 

jewel box

noun
  • A box for storing jewels. 

  • Any of the Chamidae, a family of bivalves. 

  • A usually clear hinged plastic container designed to hold a compact disc or similar optical disc. 

  • A member of the second major generation of professional ballparks, built between 1909 and approximately 1940 and distinguished by a relatively compact layout, the use of steel and reinforced concrete as structural materials rather than wood, and the presence of one or more close-in upper decks of seating supported by pillars extending from the lower deck. 

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