conventicle vs pep rally

conventicle

noun
  • The place where such a meeting is held. 

  • A secret, unauthorized or illegal religious meeting. 

  • A Quaker meetinghouse. 

verb
  • To hold a secret, unauthorized or illegal religious meeting. 

pep rally

noun
  • A meeting or gathering for the purpose of instilling enthusiasm and motivation in attenders. 

  • An extracurricular school activity in which students gather to express support for the school sports team before a game. 

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