n. hard close-grained wood of any of various birch trees; used especially in furniture and interior finishes and plywood
n. any betulaceous tree or shrub of the genus Betula having a thin peeling bark
n. a switch consisting of a twig or a bundle of twigs from a birch tree; used to hit people as punishment
v. whip with a birch twig
n. 桦树, 桦木, 桦条
[医] 桦