evenfall vs twilight

evenfall and twilight both are nouns.

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

As nouns, evenfall and twilight are synonyms defined as:

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

evenfall (noun)	twilight (noun)
the time of day immediately following sunset	the diffused light from the sky when the sun is below the horizon but its rays are refracted by the atmosphere of the earth
	a condition of decline following successes
	the time of day immediately following sunset

evenfall (adjective)	twilight (adjective)
	lighted by or as if by twilight