pastry dough vs pastry

pastry dough and pastry both are nouns.

Word	Noun	Adjective	Verb	Adverb
pastry dough	Yes	No	No	No
pastry	Yes	No	No	No

As nouns, pastry dough and pastry are synonyms defined as:

pastry dough (noun)	pastry (noun)
a dough of flour and water and shortening	any of various baked foods made of dough or batter
	a dough of flour and water and shortening