outfall vs exit

outfall and exit both are nouns.

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

As nouns, exit is a hypernym of outfall; that is, exit is a word with a broader meaning than outfall:

Other hypernyms of outfall include issue, outlet, way out.

outfall (noun)	exit (noun)
the outlet of a river or drain or other source of water	the act of going out
	an opening that permits escape or release
	euphemistic expressions for death

outfall (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