concordance vs disagreement

concordance

noun
  • Agreement; accordance; consonance. 

  • A list of occurrences of a word or phrase from a corpus, with the immediate context. 

  • An alphabetical verbal index showing the places in the text of a book where each principal word may be found, with its immediate context in each place. 

disagreement

noun
  • A condition of not agreeing or concurring. 

  • An argument or debate. 

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