political opposition vs terrorist

political opposition

noun
  • Actions by one political group against another political group, either by using governmental power or by popular actions such as protests; generally, disagreement in politics. 

  • A recognized political party or group of parties in multiparty political systems that is present in Parliament or some other legislative body and does not control the floor (usually due to being in the minority). 

  • An unrecognized political party in a one-party state. 

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 political opposition and terrorist occurred in a corpus of books? (source: Google Ngram Viewer )