coordinating conjunction vs fraternization

coordinating conjunction

noun
  • A conjunction that joins two grammatical elements of the same status or construction. It can join subjects, objects, verbs, nouns, adjectives, phrases, and independent clauses. 

fraternization

noun
  • The act of fraternizing or uniting as brothers. 

  • any type of disallowed, supposedly unethical and unprofessional, social or intimate contact between employees, especially between different gender, class or rank. 

  • Having a friendly relationship with the enemy. 

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