rioter vs terrorist

rioter

noun
  • One who riots; part of the unruly violent crowd causing a riot. 

terrorist

noun
  • A person, group, or organization that uses violent action, or the threat of violent action, to further political goals. 

  • An agent or partisan of the revolutionary tribunal during the Reign of Terror in France. 

adj
  • Of or relating to terrorism. 

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