sunset vs old

sunset and old both are nouns.

Word	Noun	Adjective	Verb	Adverb
sunset	Yes	Yes	No	No
old	Yes	Yes	No	No

sunset (noun)	old (noun)
the daily event of the sun sinking below the horizon	past times
atmospheric phenomena accompanying the daily disappearance of the sun
the time in the evening at which the sun begins to fall below the horizon

sunset (adjective)	old (adjective)
providing for termination	of long duration; not new
of a declining industry or technology	(used especially of persons) having lived for a relatively long time or attained a specific age
	skilled through long experience
	(used for emphasis) very familiar
	excellent
	just preceding something else in time or order
	belonging to some prior time