bedfellow vs visitor

bedfellow

noun
  • One with whom one shares a bed. 

  • An associate, often an otherwise improbable one. 

visitor

noun
  • Someone who visits someone else; someone staying as a guest. 

  • Someone who pays a visit to a specific place or event; a sightseer or tourist. 

  • An object which lands or passes by Earth or its orbit. 

  • A head or overseer of an institution such as a college (in which case, equivalent to the university's chancellor) or cathedral or hospital, who resolves disputes, gives ceremonial speeches, etc. 

  • A person authorized to visit an institution to see that it is being managed properly. 

  • An extraterrestrial being on Earth for any reason. 

  • The object in the visitor pattern that performs an operation on the elements of a structure one by one. 

  • Someone, or a team, that is playing away from home. 

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