racket vs tranquility

racket

noun
  • An implement with a handle connected to a round frame strung with wire, sinew, or plastic cords, and used to hit a ball, such as in tennis or a birdie in badminton. 

  • An illegal scheme for profit; a fraud or swindle; or both coinstantiated. 

  • A broad wooden shoe or patten for a man or horse, to allow walking on marshy or soft ground. 

  • A loud noise. 

  • A snowshoe formed of cords stretched across a long and narrow frame of light wood. 

verb
  • To strike with, or as if with, a racket. 

  • To make a clattering noise. 

tranquility

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