condolences vs significant other

condolences

noun
  • comfort, support, or sympathy offered especially to the family and friends of somebody who has died. 

intj
  • Expressing sympathy to someone, especially after learning of a close death. 

significant other

noun
  • A person with whom one has an important bond of some kind. 

  • One's exclusive romantic partner. 

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