DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   Lassa
       n 1: the sacred city of Lamaism; known as the Forbidden City for
            its former inaccessibility and hostility to strangers [syn:
            Lhasa, Lassa, capital of Tibet, Forbidden City]