revelation vs insight

revelation and insight both are nouns.

Word	Noun	Adjective	Verb	Adverb
revelation	Yes	No	No	No
insight	Yes	No	No	No

As nouns, insight is a hypernym of revelation; that is, insight is a word with a broader meaning than revelation:

Other hypernyms of revelation include brainstorm, brainwave.

revelation (noun)	insight (noun)
an enlightening or astonishing disclosure	grasping the inner nature of things intuitively
communication of knowledge to man by a divine or supernatural agency	the clear (and often sudden) understanding of a complex situation
the speech act of making something evident	clear or deep perception of a situation
	a feeling of understanding