killing vs man-killer

killing

noun
  • An instance of someone being killed. 

  • A large amount of money. 

adj
  • That makes one ‘die’ with laughter; very funny. 

  • That literally deprives of life; lethal, deadly, fatal. 

man-killer

noun
  • A murderer. 

  • An animal that kills humans. 

  • Someone who habitually seduces men. 

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