criminal vs hatchet man

criminal

noun
  • A person who is guilty of a crime, notably breaking the law. 

adj
  • Against the law; forbidden by law. 

  • Guilty of breaking the law. 

  • Abhorrent or very undesirable. 

  • Of or relating to crime or penal law. 

hatchet man

noun
  • A male professional killer or gunman. 

  • A male who carries out brutal and unpleasant duties on behalf of another, such as firing dead wood employees. 

  • A male hatchet-wielding participant in a Chinese-American tong war. 

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