breakup vs validation

breakup

noun
  • The termination of a friendship or a romantic relationship. 

  • The act of breaking up; disintegration or division. 

  • The time of year during which winter ice covering bodies of water disintegrates; more generally, spring. 

  • A loss of emotional control; a breakdown. 

validation

noun
  • Something, such as a certificate, that validates something; attestation, authentication, confirmation, proof or verification. 

  • The process of identifying a new prisoner's gang affiliation. 

  • The process whereby others confirm the validity of one's emotions. 

  • The act of validating something. 

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