cinnamon bread vs breadstuff

cinnamon bread and breadstuff both are nouns.

Word	Noun	Adjective	Verb	Adverb
cinnamon bread	Yes	No	No	No
breadstuff	Yes	No	No	No

As nouns, breadstuff is a hypernym of cinnamon bread; that is, breadstuff is a word with a broader meaning than cinnamon bread:

cinnamon bread: bread flavored with cinnamon often containing raisins
breadstuff: food made from dough of flour or meal and usually raised with yeast or baking powder and then baked

Other hypernyms of cinnamon bread include bread, staff of life.

cinnamon bread (noun)	breadstuff (noun)
bread flavored with cinnamon often containing raisins	food made from dough of flour or meal and usually raised with yeast or baking powder and then baked
	flour or meal or grain used in baking bread