dissonance vs discord

dissonance and discord both are nouns.

Word	Noun	Adjective	Verb	Adverb
dissonance	Yes	No	No	No
discord	Yes	No	Yes	No

As nouns, discord is a hyponym of dissonance; that is, discord is a word with a more specific, narrower meaning than dissonance:

Other hyponyms of dissonance include discordance, disharmony, inharmoniousness, cacophony.

dissonance (noun)	discord (noun)
disagreeable sounds	strife resulting from a lack of agreement
the auditory experience of sound that lacks musical quality; sound that is a disagreeable auditory experience	a harsh mixture of sounds
a conflict of people's opinions or actions or characters	disagreement among those expected to cooperate
	lack of agreement or harmony

dissonance (verb)	discord (verb)
	be different from one another