harridan vs common scold

harridan and common scold both are nouns.

Word	Noun	Adjective	Verb	Adverb
harridan	Yes	No	No	No
common scold	Yes	No	No	No

As nouns, common scold is a hypernym of harridan; that is, common scold is a word with a broader meaning than harridan:

harridan: a scolding (even vicious) old woman
common scold: someone (especially a woman) who annoys people by constantly finding fault

Other hypernyms of harridan include nag, nagger, scold, scolder.

harridan (noun)	common scold (noun)
a scolding (even vicious) old woman	someone (especially a woman) who annoys people by constantly finding fault