briarwood vs brier-wood

briarwood and brier-wood both are nouns.

Word	Noun	Adjective	Verb	Adverb
briarwood	Yes	No	No	No
brier-wood	Yes	No	No	No

As nouns, briarwood and brier-wood are synonyms defined as:

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

Other synonyms of briarwood include brierwood.

briarwood (noun)	brier-wood (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