"brier" in the noun sense
1. brier, brierpatch, brier patch
tangled mass of prickly plants
a thorny stem or twig
3. sweetbrier, sweetbriar, brier, briar, eglantine, Rosa eglanteria
Eurasian rose with prickly stems and fragrant leaves and bright pink flowers followed by scarlet hips
4. bullbrier, greenbrier, catbrier, horse brier, horse-brier, brier, briar, Smilax rotundifolia
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
5. tree heath, briar, brier, Erica arborea
evergreen treelike Mediterranean shrub having fragrant white flowers in large terminal panicles and hard woody roots used to make tobacco pipes
Source: WordNet® (An amazing lexical database of English)
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