pastry board vs bread board

pastry board and bread board both are nouns.

Word	Noun	Adjective	Verb	Adverb
pastry board	Yes	No	No	No
bread board	Yes	No	No	No

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

pastry board: A big wooden board used for kneading dough.
bread board: a wooden or plastic board on which dough is kneaded or bread is sliced

Other hypernyms of pastry board include breadboard.

pastry board (noun)	bread board (noun)
A big wooden board used for kneading dough.	a wooden or plastic board on which dough is kneaded or bread is sliced