panic in WordNet English dictionary

1. an overwhelming feeling of fear and anxiety
   panic  terror  affright 
   
2. sudden mass fear and anxiety over anticipated events
   "panic in the stock market"; "a war scare"; "a bomb scare led them to evacuate the building"
   panic  scare 
   

1. be overcome by a sudden fear
   "The students panicked when told that final exams were less than a week away"
   panic 
   
2. cause sudden fear in or fill with sudden panic
   "The mere thought of an isolation cell panicked the prisoners"
   panic