grenade vs shrapnel

grenade

noun
  • A small explosive device, designed to be thrown by hand or launched using a rifle, grenade launcher, or rocket. 

  • An unattractive girl. 

  • A charge similar to a fireball, and made of a disc-shaped bomb shell, but with only one set of flames at the top. 

verb
  • To use grenade(s) upon. 

shrapnel

noun
  • An anti-personnel artillery shell used in World War I which carries a large number of individual bullets close to the target and then ejects them to allow them to continue along the shell's trajectory and strike the target individually. 

  • The bullets from the aforementioned type of artillery shell. 

  • A collective term for shot, fragments, or debris thrown out by an exploding shell, bomb or landmine. 

  • Debris. 

  • Loose change. 

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