burnt in WordNet English dictionary

1. ruined by overcooking
   "she served us underdone bacon and burnt biscuits"
   burned  burnt 
   
2. destroyed or badly damaged by fire
   "a row of burned houses"; "a charred bit of burnt wood"; "a burned-over site in the forest"; "barricaded the street with burnt-out cars"
   burned  burnt  burned-over  burned-out  burnt-out 
   
3. treated by heating to a high temperature but below the melting or fusing point
   "burnt sienna"
   burned  burnt