polytechnic vs varsity

polytechnic

noun
  • A three-year post-secondary vocational training institute, equivalent of community college in the U.S. or TAFE in Australia. 

adj
  • that teaches applied arts, sciences, technology, engineering and other academic subjects 

varsity

noun
  • university 

  • The principal sports team representing an institution (usually a high school, college, or university.) 

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