boarding school vs homestay

boarding school

noun
  • A school which provides board and lodging as well as tuition, with students going home at weekends or between terms. 

  • A boarding school in which a dominant or colonial culture whitewashes a subordinate one de-culturizing the students of their native language, customs, religion, and culture. 

homestay

noun
  • A system whereby students, visiting a foreign country to study, board with a local family at an affordable price. 

  • A house used primarily as the residence of the owner but with the business of accommodating paying guests. 

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