chuckle vs snicker

chuckle

noun
  • A quiet laugh. 

verb
  • To communicate through chuckling. 

  • To laugh quietly or inwardly. 

snicker

noun
  • A stifled or broken laugh. 

  • A player who snicks the ball. 

verb
  • To emit a snicker, a stifled or broken laugh. 

  • To whinny. 

  • To utter through a laugh of this kind. 

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