fraternity vs junior college

fraternity

noun
  • A social organization of male students at a college or university; usually identified by Greek letters. 

  • A group of people associated for a common purpose. 

  • The quality of being brothers or brotherly; brotherhood. 

junior college

noun
  • A government high school, usually abbreviated to "JC" 

  • An institution of higher education that awards the associate's degree but not bachelor's degree or higher. 

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