DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   cave
       n 1: a geological formation consisting of an underground
            enclosure with access from the surface of the ground or
            from the sea
       v 1: hollow out as if making a cave or opening; "The river was
            caving the banks" [syn: cave, undermine]
       2: explore natural caves [syn: cave, spelunk]