discord vs participation

discord

noun
  • 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. 

  • Lack of concord, agreement or harmony. 

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

participation

noun
  • The state of being related to a larger whole. 

  • The act of participating, of taking part in something. 

  • The process during which individuals, groups and organizations are consulted about or have the opportunity to become actively involved in a project or program of activity. 

  • An ownership interest or profit-sharing right. 

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