butchery vs ethnic cleansing

butchery

noun
  • The cruel, ruthless killings of humans, as at a slaughterhouse. 

  • A disastrous effort, an atrocious failure. 

  • A meat market 

  • An abattoir, a slaughterhouse. 

  • The stereotypical behaviors and accoutrements of being a butch lesbian. 

  • The butchering of meat. 

ethnic cleansing

noun
  • The mass expulsion or killing of people belonging to one ethnic group by those of another. 

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