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Found one definition

1.                 From English-Hindi FreeDict Dictionary ver. 1.6:
                   
   
   
                   
                     
   lost /lˈɒst/ <Adj>
   1. हारा हुआ
         "It is a lost case."
   2. खोया हुआ
         "Lost property."
   3. गँवाया हुआ
         "His is a lost case. It is a lost cause."