dark bread vs bread

dark bread and bread both are nouns.

Word	Noun	Adjective	Verb	Adverb
dark bread	Yes	No	No	No
bread	Yes	No	Yes	No

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

dark bread: bread made with whole wheat flour
bread: food made from dough of flour or meal and usually raised with yeast or baking powder and then baked

Other hypernyms of dark bread include breadstuff, staff of life.

dark bread (noun)	bread (noun)
bread made with whole wheat flour	food made from dough of flour or meal and usually raised with yeast or baking powder and then baked
	informal terms for money

dark bread (verb)	bread (verb)
	cover with bread crumbs