evenfall vs dusk

evenfall and dusk both are nouns.

Word	Noun	Adjective	Verb	Adverb
evenfall	Yes	No	No	No
dusk	Yes	No	Yes	No

As nouns, evenfall and dusk are synonyms defined as:

Other synonyms of evenfall include crepuscle, crepuscule, fall, gloam, gloaming, nightfall, twilight.

evenfall (noun)	dusk (noun)
the time of day immediately following sunset	the time of day immediately following sunset

evenfall (verb)	dusk (verb)
	become dusk