muscat vs muskat

muscat and muskat both are nouns.

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

As nouns, muscat and muskat are synonyms defined as:

muscat and muskat: any of several cultivated grapevines that produce sweet white grapes

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