board of appeals vs appeal board

board of appeals and appeal board both are nouns.

Word	Noun	Adjective	Verb	Adverb
board of appeals	Yes	No	No	No
appeal board	Yes	No	No	No

As nouns, board of appeals and appeal board are synonyms defined as:

board of appeals and appeal board: a board of officials that are not judicial but are appointed to hear appeals

Other synonyms of board of appeals include appeals board.

board of appeals (noun)	appeal board (noun)
a board of officials that are not judicial but are appointed to hear appeals	a board of officials that are not judicial but are appointed to hear appeals