bombshell vs nuclear weapon

bombshell

noun
  • A bomb or artillery shell designed to explode on impact. 

  • Something that is very surprising, shocking, amazing or sensational. 

  • Someone who is very attractive; a sex symbol. 

nuclear weapon

noun
  • A weapon that derives its energy from the nuclear reactions of either fission or fusion. 

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