backyard vs cottage

backyard

noun
  • A yard to the rear of a house or similar residence. 

  • An area nearby to a country or other jurisdiction's legal boundaries, particularly an area in which the country feels it has an interest. 

  • A person's neighborhood, or an area nearby to a person's usual residence or place of work and where the person is likely to go. 

cottage

noun
  • A seasonal home of any size or stature, a recreational home or a home in a remote location. 

  • A small house. 

  • A meeting place for homosexual men. 

verb
  • To have homosexual sex in a public lavatory; to practice cottaging. 

  • To stay at a seasonal home, to go cottaging. 

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