chalet vs semi

chalet

noun
  • An alpine style of wooden building with a sloping roof and overhanging eaves. 

semi

noun
  • A semi-detached house. 

  • A semifinal. 

  • A semi-trailer; a tractor-trailer; an eighteen-wheeler; an artic. 

  • A partial erection of the penis. 

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