Definitions

1. noun

a type of thorny shrub or small tree with dense thorny branches, especially Rosa rubiginosa or R. secunda, the blackthorn, which is the source of sloes.

“The hikers navigated through the dense briar and reached the summit.”

2. noun

a pipe or other container for smoking tobacco, especially one made from the wood of the briar tree.

“He lit his briar pipe and sat on the porch, watching the sunset.”

3. verb

to cover or become covered with thorns or prickly growths.

“The garden path had been briared with thorns and was difficult to walk on.”