kick the bucket vs exit

kick the bucket is not a noun while exit is a noun.

Word	Noun	Adjective	Verb	Adverb
kick the bucket	No	No	Yes	No
exit	Yes	No	Yes	No

As verbs, kick the bucket and exit are synonyms defined as:

kick the bucket and exit: pass from physical life and lose all bodily attributes and functions necessary to sustain life

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

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