cram school vs varsity

cram school

noun
  • A specialized school that trains students to meet particular goals, most commonly to pass the entrance examinations of high schools or universities. 

varsity

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

  • university 

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