denizen vs user

denizen

noun
  • One who frequents a place. 

  • A foreign word that has become naturalised in another language. 

  • A person with rights between those of naturalized citizen and resident alien (roughly permanent resident), obtained through letters patent. 

  • Though born in Iceland, he became a denizen of Britain after leaving Oxford. 

  • An inhabitant of a place; one who dwells in. 

  • An animal or plant from a particular range or habitat. 

verb
  • To grant rights of citizenship to; to naturalize. 

  • To provide with denizens; to populate with adopted or naturalized occupants. 

user

noun
  • One who uses or makes use of something, a consumer/client or an express or implied licensee (free user) or a trespasser. 

  • A person who uses drugs, especially illegal drugs. 

  • A person who uses a computer or a computing network, especially a person who has received a user account. 

  • An exploiter, an abuser (a person who "uses" people, that is treats and regards people unfairly, selfishly and/or unethically). 

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