Synonyms and related words :
affright, alarm, alert, amaze, arouse, astonish, astound, awe, awestrike, be startled, bedaze, bedazzle, bewilder, boggle, bolt, bowl down, bowl over, confound, cry havoc, cry wolf, curdle the blood, daze, dazzle, discombobulate, discompose, dismay, disquiet, disturb, dumbfound, dumbfounder, electrify, fight shy, flabbergast, flinch, fly storm warnings, fright, frighten, funk, horripilate, jar, jib, jolt, jump, jump a mile, make one tremble, overwhelm, panic, paralyze, perplex, perturb, petrify, raise apprehensions, scare, shake, shake up, shock, shy, skedaddle, sound the alarm, sound the tocsin, spook, spring, stagger, stampede, start, start aside, strike dead, strike dumb, strike with wonder, stun, stupefy, surprise, take aback, terrify, terrorize, unman, unnerve, unsettle, unstring, upset, warn