frag vs silence

frag

verb
  • To kill. 

  • To hit with the explosion of a fragmentation grenade. 

  • To deliberately kill (one's superior officer) with a fragmentation grenade. 

  • I fragged him but he fell off the ledge afterwards. 

noun
  • A successful kill in a deathmatch game. 

  • A fragmentation grenade. 

silence

verb
  • To murder. 

  • To repress the expression of something. 

  • To suppress criticism, etc. 

  • To block gene expression. 

  • To make (someone or something) silent. 

noun
  • deadly silence 

  • The act of refraining from speaking. 

  • The absence of any sound. 

intj
  • Be silent. 

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