evenfall vs crepuscle

evenfall and crepuscle both are nouns.

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

As nouns, evenfall and crepuscle are synonyms defined as:

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

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