accord vs compatibility

accord and compatibility both are nouns.

Word	Noun	Adjective	Verb	Adverb
accord	Yes	No	Yes	No
compatibility	Yes	No	No	No

As nouns, compatibility is a hypernym of accord; that is, compatibility is a word with a broader meaning than accord:

accord: sympathetic compatibility
compatibility: capability of existing or performing in harmonious or congenial combination

accord (noun)	compatibility (noun)
sympathetic compatibility	capability of existing or performing in harmonious or congenial combination
concurrence of opinion	a feeling of sympathetic understanding
a written agreement between two states or sovereigns
harmony of people's opinions or actions or characters

accord (verb)	compatibility (verb)
allow to have
go together