discord vs free-for-all

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. 

free-for-all

noun
  • Chaos; a chaotic situation lacking rules or control. 

  • Deathmatch, sometimes specifically one in which every player is pitted against all the others. 

adj
  • Open to anyone and with no or few rules. 

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