SURPRISE [C, U] › a big, unpleasant surprise: We got a nasty shock when he gave us the bill. Her death came as a terrible shock to him. They are still in shock (= feeling the effect of a shock) from the accident. ILLNESS [U] › a medical condition when someone is extremely weak because of damage to their body: He went into shock and nearly died. ELECTRICITY [C] (also electric shock) › a sudden, painful feeling that you get when electricity flows through your body MOVEMENT [C] › a sudden movement caused by an explosion, accident, etc → See also culture shock