boarding house vs villa

boarding house

noun
  • A private house in which paying residents are provided with accommodation and meals. 

  • A boarding school building where boarders live during term time. 

villa

noun
  • A family house, often semi-detached, in a middle class street. 

  • A house, often larger and more expensive than average, in the countryside or on the coast, often used as a retreat. 

  • A country house, with farm buildings around a courtyard. 

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