noun A deciduous tree with distinctive deeply lobed leaves, acorns, and notably strong wood, typically of England and northeastern North America, included in genus Quercus.
oak:
noun The wood of the oak.
noun A rich brown color, like that of oak wood.
oak:
noun The flavor of oak.
noun Any member of species of the genus Quercus, in family Fagaceae.
noun Any member of other species of trees resembling typical oaks of genus Quercus in some ways. she-oaks in Allocasuarina and Casuarina, of family Casuarinaceae white oaks Lagunaria, in family Malvaceae silky oaks, in family Proteaceae poison oak Toxicodendron, in family Anacardiaceae tanbark oaks or stone oaks, of species of genera Lithocarpus and Notholithocarpus in family Fagaceae.
noun she-oaks in Allocasuarina and Casuarina, of family Casuarinaceae