noun
Lack of concord, agreement, harmony; disaccord.
Tension or strife resulting from a lack of agreement; dissension.
Any harsh noise, or confused mingling of sounds.
(music) An inharmonious combination of simultaneously sounded tones; a dissonance.
verb
(intransitive, archaic) To disagree; to fail to agree or harmonize; clash.
verb
(transitive, rare) To untie things which are connected by a cord.