discrepancy vs departure

discrepancy and departure both are nouns.

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

As nouns, departure is a hypernym of discrepancy; that is, departure is a word with a broader meaning than discrepancy:

Other hypernyms of discrepancy include deviation, difference, divergence.

discrepancy (noun)	departure (noun)
a difference between conflicting facts or claims or opinions	the act of departing
an event that departs from expectations	euphemistic expressions for death
	a variation that deviates from the standard or norm