compunction vs rue

compunction and rue both are nouns.

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

As nouns, rue is a hypernym of compunction; that is, rue is a word with a broader meaning than compunction:

Other hypernyms of compunction include regret, ruefulness, sorrow.

compunction (noun)	rue (noun)
a feeling of deep regret (usually for some misdeed)	(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

compunction (verb)	rue (verb)
	feel remorse for; feel sorry for; be contrite about