jolt

Noun

• an abrupt spasmodic movement

• a sudden jarring impact
  • the door closed with a jolt
    
  • all the jars and jolts were smoothed out by the shock absorbers
    

Verb

• disturb (someone's) composure
  • The audience was jolted by the play
    

• move or cause to move with a sudden jerky motion

Related words

• Synonyms: 
  jerk , jerking , saccade , jar , jounce , shock