prodigy vs omen

prodigy and omen both are nouns.

Word	Noun	Adjective	Verb	Adverb
prodigy	Yes	No	No	No
omen	Yes	No	Yes	No

As nouns, prodigy and omen are synonyms defined as:

Other synonyms of prodigy include portent, presage, prognostic, prognostication.

prodigy (noun)	omen (noun)
an impressive or wonderful example of a particular quality	a sign of something about to happen
a sign of something about to happen
an unusually gifted or intelligent (young) person; someone whose talents excite wonder and admiration

prodigy (verb)	omen (verb)
	indicate, as with a sign or an omen