accord vs concord

accord and concord both are nouns.

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

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

accord: harmony of people's opinions or actions or characters
concord: a harmonious state of things in general and of their properties (as of colors and sounds); congruity of parts with one another and with the whole

Other hypernyms of accord include concordance, harmony.

As verbs, accord and concord are synonyms defined as:

Other synonyms of accord include agree, consort, fit in, harmonise, harmonize.

accord (noun)	concord (noun)
sympathetic compatibility	agreement of opinions
concurrence of opinion	the determination of grammatical inflection on the basis of word relations
a written agreement between two states or sovereigns	a harmonious state of things in general and of their properties (as of colors and sounds); congruity of parts with one another and with the whole
harmony of people's opinions or actions or characters

accord (verb)	concord (verb)
allow to have	be in accord; be in agreement
go together	arrange the words of a text so as to create a concordance
	arrange by concord or agreement
	go together