briarwood vs brierwood

briarwood and brierwood both are nouns.

Word	Noun	Adjective	Verb	Adverb
briarwood	Yes	No	No	No
brierwood	Yes	No	No	No

As nouns, briarwood and brierwood are synonyms defined as:

briarwood and brierwood: wood from the hard woody root of the briar Erica arborea; used to make tobacco pipes

Other synonyms of briarwood include brier-wood.

briarwood (noun)	brierwood (noun)
wood from the hard woody root of the briar Erica arborea; used to make tobacco pipes	wood from the hard woody root of the briar Erica arborea; used to make tobacco pipes