What is the definition of suspense/shock?

The main meaning of suspense is when a certain situation builds up to the highest point and then the point is almost given away. It builds up from something small, for example the scene in "North by North West". The scene is in the auction house. Where Thornhill is surrounded by his enemies. At first we do not think it is too much of a big deal because we think he will be able to simply walk out.  Then the suspense builds to the point where we don't have any idea of how he is going to get out of the building. Also another scene with the plane we see it in the distance do its job however we do not expect anything form it int he future however it appears randomly and starts shooting at Thornhill after the man says something about the plane not actually dusting the fields. We start to hear the noise of the plane as it gets closer. This build suspense of us wanting to know if the plane is going to attack him.

It gets to the point where Thornhill knows that he has been captured and all the exits are covered. It then carries on the raise of suspense level by Thronhill acting rude and trying to get himself kicked out. By the point the enemies notice this he has already been escorted out of the building.

The definition of shock is when something that you did not expect actually happens.
The parts of the film where shock is showed is the plane seen. This is because we dont expect a plane to come out of nowhere and start shooting at him. We get the slight idea of suspense when we see the plane in the distance we get the idea that it may attack him.