amaze astonish astound awe awestrike bedaze bedazzle bewilder boggle bowl down bowl over choke choke off confound confuse daze dazzle dumbfounder flabbergast floor gag hush hush-hush muffle muzzle nonplus overwhelm paralyze perplex petrify put to silence quiet quieten shock shush shut down on silence soft-pedal squash squelch stagger startle stifle still strike dead strike dumb strike with wonder stun stupefy surprise throttle