offense vs onslaught

offense

noun
  • An affront, injury, or insult. 

  • A strategy and tactics employed when in position to score; contrasted with defense. 

  • The portion of a team dedicated to scoring when in position to do so; contrasted with defense. 

  • A crime or sin. 

  • The state of being offended or displeased; anger; displeasure. 

onslaught

noun
  • A fierce attack. 

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

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