cannonade vs gunfire

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. 

gunfire

noun
  • The time of firing of the morning gun or the evening gun. 

  • The use of gunpowder-type weapons, mainly cannon, as opposed to swords or bayonets. 

  • Shots from a gun or guns, typically creating loud report. 

  • Tea, a cup of tea, especially one served early in the morning before first parade. 

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