air raid vs cannonade

air raid

noun
  • A passing-heavy offensive scheme based on a shotgun formation with four wide receivers and a single running back. 

  • An attack on a surface target by aircraft. 

cannonade

noun
  • The firing of artillery for a length of time. 

  • A loud noise like a cannonade; a booming. 

verb
  • To discharge artillery fire upon. 

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