fracture vs overturn

fracture

verb
  • To break, or cause something to break. 

  • To amuse (a person) greatly; to split someone's sides. 

noun
  • A break in bone or cartilage. 

  • An instance of breaking, a place where something has broken. 

  • A fault or crack in a rock. 

overturn

verb
  • To turn over, capsize or upset. 

  • To diminish the significance of a previous defeat by winning; to make a comeback from. 

  • To overthrow or destroy. 

  • Of a body of water: to undergo a limnic eruption, where dissolved gas suddenly erupts from the depths. 

  • To reverse (a decision); to overrule or rescind. 

noun
  • The overturning or overthrow of some institution or state of affairs; ruin. 

  • A turning over or upside-down; inversion. 

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