Nouns

(n)panic, scaresudden mass fear and anxiety over anticipated events“panic in the stock market”, “a war scare”, “a bomb scare led them to evacuate the building”
(n)scare, panic attacka sudden attack of fear

Verbs

(v)frighten, fright, scare, affrightcause fear in“The stranger who hangs around the building frightens me”, “Ghosts could never affright her”
(v)daunt, dash, scare off, pall, frighten off, scare away, frighten away, scarecause to lose courage; to be daunted; to be scared away“dashed by the refusal”