undock vs exit

undock is not a noun while exit is a noun.

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

As verbs, exit is a hypernym of undock; that is, exit is a word with a broader meaning than undock:

Other hypernyms of undock include get out, go out, leave.

undock (noun)	exit (noun)
	the act of going out
	an opening that permits escape or release
	euphemistic expressions for death

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