bungalow vs mansard

bungalow

noun
  • A single-storey house, typically with rooms all on one level, or sometimes also with upper rooms set into the roof space. 

  • A thatched or tiled one-story house in India surrounded by a wide veranda; a similar house in this style. 

mansard

noun
  • The upper storey of a building, surrounded by such a roof 

  • A mansard roof 

adj
  • having two slopes on each side, the lower being steeper than the upper 

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