catwalk vs overpass

catwalk

noun
  • Any similar elevated walkway. 

  • An elevated enclosed passage providing access fore and aft from the bridge of a merchant vessel. 

  • A narrow elevated stage on which models parade; a runway 

  • The business of making clothes for fashion shows. 

overpass

noun
  • A section of a road or path that crosses over an obstacle, especially another road, railway, etc. 

verb
  • To pass above something, as when flying or moving on a higher road. 

  • To exceed, overstep, or transcend a limit, threshold, or goal. 

  • To disregard, skip, or miss something. 

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