discord vs dissent

discord

noun
  • Lack of concord, agreement or harmony. 

  • Any harsh noise, or confused mingling of sounds. 

  • Tension or strife resulting from a lack of agreement; dissension. 

  • An inharmonious combination of simultaneously sounded tones; a dissonance. 

verb
  • To untie things which are connected by a cord. 

dissent

noun
  • Disagreement with the ideas, doctrines, decrees, etc. of a political party, government or religion. 

  • An act of disagreeing with, or deviating from, the views and opinions of those holding authority. 

  • A violation that arises when disagreement with an official call is expressed in an inappropriate manner such as foul language, rude gestures, or failure to comply. 

  • A separate opinion filed in a case by judges who disagree with the outcome of the majority of the court in that case 

verb
  • To disagree; to withhold assent. Construed with from (or, formerly, to). 

  • To differ from, especially in opinion, beliefs, etc. 

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