brush-off vs rejection

brush-off

noun
  • An abrupt rebuff, a snub or curt rejection, a disdainful dismissal. 

rejection

noun
  • The state of being rejected. 

  • The act of rejecting. 

  • An immune reaction of a host organism to a foreign biological tissue, such as in an organ transplant. 

  • A blocked shot. 

How often have the words brush-off and rejection occurred in a corpus of books? (source: Google Ngram Viewer )