beggarwoman vs adult female

beggarwoman and adult female both are nouns.

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

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

Other hypernyms of beggarwoman include beggar, mendicant, woman.

beggarwoman (noun)	adult female (noun)
a woman who is a beggar	an adult female person (as opposed to a man)