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Found one definition

1.                 From English-Hindi FreeDict Dictionary ver. 1.6:
                   
   
   
                   
                     
   coup /kˈuːp/ <N>
   1. आकस्मिक~शासन-परिवर्तन
         "The Prime Minister was afraid of a military coup."
   2. सफल~एवं~अकस्मात~क्रिया
         "The takeover of a multinational company was a brilliant coup."