muscat vs fortified wine

muscat and fortified wine both are nouns.

Word	Noun	Adjective	Verb	Adverb
muscat	Yes	No	No	No
fortified wine	Yes	No	No	No

As nouns, fortified wine is a hypernym of muscat; that is, fortified wine is a word with a broader meaning than muscat:

muscat (noun)	fortified wine (noun)
sweet aromatic grape used for raisins and wine	wine to which alcohol (usually grape brandy) has been added
wine from muscat grapes
any of several cultivated grapevines that produce sweet white grapes