knockout vs adult female

knockout and adult female both are nouns.

Word	Noun	Adjective	Verb	Adverb
knockout	Yes	Yes	No	No
adult female	Yes	No	No	No

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

Other hypernyms of knockout include woman.

knockout (noun)	adult female (noun)
a blow that renders the opponent unconscious	an adult female person (as opposed to a man)
a very attractive or seductive looking woman

knockout (adjective)	adult female (adjective)
very strong or vigorous