revelation vs discovery

revelation and discovery both are nouns.

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

As nouns, discovery is a hyponym of revelation; that is, discovery is a word with a more specific, narrower meaning than revelation:

revelation (noun)	discovery (noun)
an enlightening or astonishing disclosure	the act of discovering something
communication of knowledge to man by a divine or supernatural agency	a productive insight
the speech act of making something evident	something that is discovered
	(law) compulsory pretrial disclosure of documents relevant to a case; enables one side in a litigation to elicit information from the other side concerning the facts in the case