sunset vs evening

sunset and evening both are nouns.

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

sunset (noun)	evening (noun)
the daily event of the sun sinking below the horizon	the latter part of the day (the period of decreasing daylight from late afternoon until nightfall)
atmospheric phenomena accompanying the daily disappearance of the sun	a later concluding time period
the time in the evening at which the sun begins to fall below the horizon	the early part of night (from dinner until bedtime) spent in a special way

sunset (adjective)	evening (adjective)
providing for termination
of a declining industry or technology