onslaught vs violence

onslaught

noun
  • A fierce attack. 

  • A large number of people or things resembling an attack. 

violence

noun
  • Widespread fighting. 

  • Extreme force. 

  • Injustice, wrong. 

  • Physical action which causes destruction, harm, pain, or suffering. 

verb
  • To subject to violence. 

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