discrepancy vs variant

discrepancy and variant both are nouns.

Word	Noun	Adjective	Verb	Adverb
discrepancy	Yes	No	No	No
variant	Yes	Yes	No	No

As nouns, discrepancy and variant are synonyms defined as:

Other synonyms of discrepancy include variance.

discrepancy (noun)	variant (noun)
a difference between conflicting facts or claims or opinions	a variable quantity that is random
an event that departs from expectations	something a little different from others of the same type
	an event that departs from expectations
	(biology) a group of organisms within a species that differ in trivial ways from similar groups

discrepancy (adjective)	variant (adjective)
	differing from a norm or standard
	exhibiting variation and change