freedman vs adult female

freedman and adult female both are nouns.

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

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

Other hypernyms of freedman include freedperson, woman.

freedman (noun)	adult female (noun)
a male person who has been freed from slavery	an adult female person (as opposed to a man)