assassin vs saboteur

assassin

noun
  • Someone who intentionally kills a person, especially a professional who kills a public or political figure. 

  • Any ruthless killer. 

  • A member of the Nizari Ismaili Muslim community of the Alamut Period. 

verb
  • To assassinate. 

saboteur

noun
  • A person who intentionally causes the destruction of property in order to hinder the efforts of their enemy. 

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