discord vs dissension

discord and dissension both are nouns.

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

As nouns, discord and dissension are synonyms defined as:

discord (noun)	dissension (noun)
strife resulting from a lack of agreement	disagreement among those expected to cooperate
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

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