oak

1. A deciduous tree with distinctive deeply lobed leaves, acorns, and notably strong wood, typically of England and northeastern North America, included in genus Quercus. (countable)
2. The wood of the oak. (uncountable)
3. A rich brown color, like that of oak wood. (countable, uncountable)
4. The flavor of oak. (countable, uncountable)
5. Any member of species of the genus Quercus, in family Fagaceae. (countable, uncountable)
6. she-oaks in Allocasuarina and Casuarina, of family Casuarinaceae (countable, uncountable)
7. white oaks Lagunaria, in family Malvaceae (countable, uncountable)
8. silky oaks, in family Proteaceae (countable, uncountable)

Plural oaks