| OAK | a deciduous tree of the genus Quercus |
|---|---|
| OAK | the hard durable wood of any oak |
| OAK | consisting of or made of wood of the oak tree |
| OAK | oak gall caused by larvae of a cynipid wasp |
| OAK | a black plant louse that lives on oaks and dogwoods |
| OAK | a tree of the genus Castanopsis |
| OAK | bright blue-green fern widely distributed especially in damp acid woodlands of temperate northern hemisphere |
| OAK | a deciduous tree of the genus Quercus |
| OAK | annual European plant with spikes of greenish flowers and leaves that are white-hairy beneath |
| OAK | consisting of or made of wood of the oak tree |
| OAK | a city in western California on San Francisco Bay opposite San Francisco |
| OAK | annual European plant with spikes of greenish flowers and leaves that are white-hairy beneath |