rue vs repent

rue is a noun but repent is not a noun.

Word	Noun	Adjective	Verb	Adverb
rue	Yes	No	Yes	No
repent	No	No	Yes	No

As verbs, rue and repent are synonyms defined as:

Other synonyms of rue include regret.

rue (noun)	repent (noun)
(French) a street or road in France
sadness associated with some wrong done or some disappointment
leaves sometimes used for flavoring fruit or claret cup but should be used with great caution: can cause irritation like poison ivy
European strong-scented perennial herb with grey-green bitter-tasting leaves; an irritant similar to poison ivy

rue (verb)	repent (verb)
feel remorse for; feel sorry for; be contrite about	feel remorse for; feel sorry for; be contrite about
	turn away from sin or do penitence