gloam vs dusk

gloam and dusk both are nouns.

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

As nouns, gloam and dusk are synonyms defined as:

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

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

gloam (verb)	dusk (verb)
	become dusk