rental vs tenure

rental

noun
  • An act of renting. 

  • A business that rents out something to its customers. 

  • The payment made to rent something. 

  • Something that is rented. 

  • A player traded to a team with a year or less on his contract 

adj
  • Relating to renting. 

  • Relating to rent. 

tenure

noun
  • A status of possessing a thing or an office; an incumbency. 

  • A period of time during which something is possessed. 

  • A right to hold land under the feudal system. 

  • A status of having a permanent post with enhanced job security within an academic institution. 

verb
  • To grant tenure, the status of having a permanent academic position, to (someone). 

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