crosswalk vs rotary

crosswalk

noun
  • A point designated for pedestrians to cross a street. 

  • A mapping between equivalent elements (fields) in different database schemas. 

verb
  • To map equivalent elements (fields) in different database schemas. 

rotary

noun
  • A roundabout, traffic circle. 

  • Any of the clubs making up the international Rotary International movement for community service. 

adj
  • Capable of rotation. 

  • A rotary engine revolves the heads rather than having pistons go back and forth. 

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