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1.                 From English-Hindi FreeDict Dictionary ver. 1.6:
                   
   
   
                   
                     
   flare up /flˈeəɹ ˈʌp/ <V>
   1. आग भड़कना
         "The fire flared up as it reached the petrol dump."
   2. अचानक क्रोधित होना
         "The boss flared up on finding rejection of his ideas by the higher ups."
         "He flares up easily on minor matters."