Pronunciation: (wôl'nut", -nut),[key] —n. 1. the edible nut of trees of the genus Juglans, of the North Temperate Zone. Cf. walnut family. 2. the tree itself.
3. the wood of such a tree.
4. Northeastern U.S.the hickory nut.
5. any of various fruits or trees resembling the walnut.
6. a somewhat reddish shade of brown, as that of the heartwood of the black walnut tree.