employment vs permission

employment

noun
  • The act of employing 

  • An activity to which one devotes time 

  • The number or percentage of people at work 

  • The work or occupation for which one is used, and often paid 

  • A use, purpose 

  • The state of being employed 

permission

noun
  • The act of permitting. 

  • authorisation; consent (especially formal consent from someone in authority) 

  • Flags or access control lists pertaining to a file that dictate who can access it, and how. 

verb
  • To grant or obtain authorization for. 

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