cunt vs female genitals

cunt and female genitals both are nouns.

Word	Noun	Adjective	Verb	Adverb
cunt	Yes	No	No	No
female genitals	Yes	No	No	No

As nouns, female genitals is a hypernym of cunt; that is, female genitals is a word with a broader meaning than cunt:

Other hypernyms of cunt include fanny, female genital organ, female genitalia.

cunt (noun)	female genitals (noun)
obscene terms for female genitals	external female sex organs
a person (usually but not necessarily a woman) who is thoroughly disliked