The outer (lockable) door of a set of rooms in a college or similar institution. (Often in the phrase "to sport one's oak").
A deciduous tree with distinctive deeply lobed leaves, acorns, and notably strong wood, typically of England and northeastern North America, included in genus Quercus.
Lagunaria, white oak, in family Malvaceae
The she-oaks in Allocasuarina and Casuarina, of family Casuarinaceae
Various tanbark oak or stone oak species in family Fagaceae, genera Lithocarpus and Notholithocarpus.
The flavor of oak.
Various species called silky oak, in family Proteaceae
Any tree of the genus Quercus, in family Fagaceae.
The wood of the oak.
A rich brown colour, like that of oak wood.
Toxicodendron, poison oak, in family Anacardiaceae
made of oak wood or timber
having a rich brown colour, like that of oak wood.
To expose to oak in order for the oak to impart its flavors.