panic

panic (http://definr.com/panic)

     n 1: an overwhelming feeling of fear and anxiety [syn: terror]
     2: sudden mass fear and anxiety over anticipated events; "panic
        in the stock market"; "a war scare" [syn: scare]
     v 1: feel panic; "The students panicked when told that final
          exams were less than a week away"
     2: cause panic in; fill with panic; "Th mere thought of an
        isolation cell panicked the prisoners"