strife vs discordance

strife and discordance both are nouns.

Word	Noun	Adjective	Verb	Adverb
strife	Yes	No	No	No
discordance	Yes	No	No	No

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

Other hyponyms of strife include countercurrent, crosscurrent, discord.

strife (noun)	discordance (noun)
bitter conflict; heated often violent dissension	strife resulting from a lack of agreement
lack of agreement or harmony	a harsh mixture of sounds