bombshell vs the bomb

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. 

the bomb

noun
  • The atomic bomb; the capability to launch a nuclear attack. 

  • A success; something excellent. 

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