1.Definition: a switch consisting of a twig or a bundle of twigs from a birch tree; used to hit people as punishment

"My father never spared the birch"

Category: Objects

2.Definition: any betulaceous tree or shrub of the genus Betula having a thin peeling bark

Related Noun(s):birch tree

Category: Plants

3.Definition: hard close-grained wood of any of various birch trees; used especially in furniture and interior finishes and plywood

Category: Plants