brier vs briar

brier and briar both are nouns.

Word	Noun	Adjective	Verb	Adverb
brier	Yes	No	No	No
briar	Yes	No	No	No

As nouns, brier and briar are synonyms defined as:

brier and briar: evergreen treelike Mediterranean shrub having fragrant white flowers in large terminal panicles and hard woody roots used to make tobacco pipes

Other synonyms of brier include Erica arborea, tree heath.

As nouns, brier and briar are synonyms defined as:

brier and briar: a very prickly woody vine of the eastern United States growing in tangled masses having tough round stems with shiny leathery leaves and small greenish flowers followed by clusters of inedible shiny black berries

Other synonyms of brier include bullbrier, catbrier, greenbrier, horse-brier, horse brier, Smilax rotundifolia.

As nouns, brier and briar are synonyms defined as:

brier and briar: Eurasian rose with prickly stems and fragrant leaves and bright pink flowers followed by scarlet hips

Other synonyms of brier include eglantine, Rosa eglanteria, sweetbriar, sweetbrier.

brier (noun)	briar (noun)
evergreen treelike Mediterranean shrub having fragrant white flowers in large terminal panicles and hard woody roots used to make tobacco pipes	a pipe made from the root (briarroot) of the tree heath
a very prickly woody vine of the eastern United States growing in tangled masses having tough round stems with shiny leathery leaves and small greenish flowers followed by clusters of inedible shiny black berries	evergreen treelike Mediterranean shrub having fragrant white flowers in large terminal panicles and hard woody roots used to make tobacco pipes
Eurasian rose with prickly stems and fragrant leaves and bright pink flowers followed by scarlet hips	a very prickly woody vine of the eastern United States growing in tangled masses having tough round stems with shiny leathery leaves and small greenish flowers followed by clusters of inedible shiny black berries
tangled mass of prickly plants	Eurasian rose with prickly stems and fragrant leaves and bright pink flowers followed by scarlet hips
a thorny stem or twig