Dona vs form of address

Dona and form of address both are nouns.

Word	Noun	Adjective	Verb	Adverb
Dona	Yes	No	No	No
form of address	Yes	No	No	No

As nouns, form of address is a hypernym of Dona; that is, form of address is a word with a broader meaning than Dona:

Dona: a Spanish courtesy title or form of address for a woman
form of address: an identifying appellation signifying status or function: e.g. `Mr.' or `General'

Other hypernyms of Dona include title, title of respect.

Dona (noun)	form of address (noun)
a Spanish courtesy title or form of address for a woman	an identifying appellation signifying status or function: e.g. `Mr.' or `General'