hitting vs smacking

hitting

noun
  • A series of hits or blows directed at a person or object. 

  • The batter's hitting improved with practice. 

smacking

noun
  • A series of smacks; the act by which somebody is smacked. 

adj
  • That resounds with a loud smack or series of smacks. 

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