English muffin vs bread

English muffin and bread both are nouns.

Word	Noun	Adjective	Verb	Adverb
English muffin	Yes	No	No	No
bread	Yes	No	Yes	No

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

English muffin: round, raised muffin cooked on a griddle; usually split and toasted before being eaten
bread: food made from dough of flour or meal and usually raised with yeast or baking powder and then baked

Other hypernyms of English muffin include breadstuff, staff of life.

English muffin (noun)	bread (noun)
round, raised muffin cooked on a griddle; usually split and toasted before being eaten	food made from dough of flour or meal and usually raised with yeast or baking powder and then baked
	informal terms for money

English muffin (verb)	bread (verb)
	cover with bread crumbs