old vs sunset

old and sunset both are nouns.

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

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

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