download vs enroll

download

noun
  • A file transfer to a given computer or device from a remote one through a network connection. 

  • A file that has been or is intended to be transferred in this way. 

verb
  • Synonym of install: to load software forced. 

  • To load a gun (especially a muzzle-loader) with less propellant than its designed load. 

  • To transfer data to a given computer from a remote one via a network. 

  • Synonym of copy: to transfer data to or from removable media. 

  • Synonym of upload: to send data from a given computer to a remote one. 

enroll

verb
  • To enlist oneself (in something) or become a member (of something) 

  • To enter (a name, etc.) in a register, roll or list 

  • To enlist (someone) or make (someone) a member of 

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