muscat grape vs muscat

muscat grape and muscat both are nouns.

Word	Noun	Adjective	Verb	Adverb
muscat grape	Yes	No	No	No
muscat	Yes	No	No	No

As nouns, muscat grape and muscat are synonyms defined as:

Other synonyms of muscat grape include muscatel.

muscat grape (noun)	muscat (noun)
sweet aromatic grape used for raisins and wine	sweet aromatic grape used for raisins and wine
	wine from muscat grapes
	any of several cultivated grapevines that produce sweet white grapes