What is suspense?

sus·pense/səˈspens/

  

Noun:

A state or feeling of excited or anxious uncertainty about what may happen. A quality in a work of fiction that arouses excited expectation or uncertainty about what may happen.

Suspense is a state or feeling of excited or anxious uncertainty about what may happen. Suspense can also be the reader/audience is left hanging. Thriller and horror movies use this as a key element technique to engage the audience, keep them interested and want to know the ending. Suspense is that "on-edge" feeling when watching a movie or reading a book that makes you think that something is going to happen. It can help emphasize and also make important or final moments more memorable. Suspense is not only created in simpler moments more memorable. Suspense is also not created in simpler moments such as the victim being stalked but is generally conflict, about the obstacles between the hero and his goal.