big house vs manor house

big house

noun
  • Used other than figuratively or idiomatically: see big, house. 

  • A religious building of the Delaware Indians, representing the cosmos. 

  • Prison, jail. 

manor house

noun
  • The house of the lord of the manor. 

  • The main house on a landed estate. 

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