highway vs overpass

highway

noun
  • A road that is higher than the surrounding land and has drainage ditches at the sides 

  • A way; a path that leads to a certain destiny 

  • A main public road, especially a multi-lane, high-speed thoroughfare. 

  • Any public road for vehicular traffic. 

  • Synonym of bus (“common connection for two or more circuits or components”) 

verb
  • To travel on a highway 

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 highway and overpass occurred in a corpus of books? (source: Google Ngram Viewer )