DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   Jay
       n 1: United States diplomat and jurist who negotiated peace
            treaties with Britain and served as the first chief justice
            of the United States Supreme Court (1745-1829) [syn: Jay,
            John Jay]
       2: crested largely blue bird