defense vs irruption

defense

noun
  • Government policy or (infra)structure related to the military. 

  • A strategy and tactics employed to prevent the other team from scoring; contrasted with offense. 

  • The case presented by the defendant in a legal proceeding. 

  • The action of defending or protecting from attack, danger, or injury. 

  • The lawyer or team thereof who presents such a case. 

  • The portion of a team dedicated to preventing the other team from scoring; contrasted with offense. 

irruption

noun
  • An abrupt increase in the size of a movement or organization. 

  • An abrupt increase of an animal population. 

  • The action of irrupting or breaking into; a violent entry or invasion; an inbreaking; an intrusion. 

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