deadbolt vs ricochet

deadbolt

verb
  • To fasten or secure with a deadbolt. 

noun
  • A kind of lock in which the bolt (moving portion) is held in position by the cylinder rather than by a spring and so cannot be retracted except by turning the cylinder. 

  • The part of the lock which is moved when the key is engaged. 

ricochet

verb
  • To operate upon by ricochet firing. 

  • To rebound off something wildly in a seemingly random direction. 

noun
  • A method of firing a projectile so that it skips along a surface. 

  • An instance of ricocheting; a glancing rebound. 

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