blockbuster vs bombshell

blockbuster

noun
  • A high-explosive bomb used for the purposes of demolishing extensive areas, such as a city block. 

  • A large firework of the firecracker type; an M-80. 

  • Anything very large or powerful; a whopper. 

  • One who engages in blockbusting (technique encouraging people to sell property). 

  • Something, such as a film or book, that sustains exceptional and widespread popularity and achieves enormous sales, as opposed to a box office bomb. 

  • Something, especially an event or a film, book or other creative work, that is intended to achieve high sales (perhaps indicated by large budgets or high advertising spending) or that is conceived on a large or epic scale 

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. 

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