- 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"
- any betulaceous tree or shrub of the genus Betula having a thin peeling bark
- hard close-grained wood of any of various birch trees; used especially in furniture and interior finishes and plywood
- consisting of or made of wood of the birch tree
- whip with a birch twig