dormer vs studio apartment

dormer

noun
  • A resident of a dormitory. 

  • A room-like, roofed projection from a sloping roof. 

studio apartment

noun
  • A small apartment that combines a number of rooms, often the living room, bedroom, and kitchen, into a single room. 

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