departure vs exit

departure and exit both are nouns.

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

As nouns, exit is a hyponym of departure; that is, exit is a word with a more specific, narrower meaning than departure:

As nouns, departure and exit are synonyms defined as:

Other synonyms of departure include expiration, going, loss, passing, release.

departure (noun)	exit (noun)
the act of departing	the act of going out
euphemistic expressions for death	an opening that permits escape or release
a variation that deviates from the standard or norm	euphemistic expressions for death

departure (verb)	exit (verb)
	pass from physical life and lose all bodily attributes and functions necessary to sustain life
	lose the lead
	move out of or depart from