DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   walnut
       n 1: nut of any of various walnut trees having a wrinkled two-
            lobed seed with a hard shell
       2: hard dark-brown wood of any of various walnut trees; used
          especially for furniture and paneling
       3: any of various trees of the genus Juglans [syn: walnut,
          walnut tree]