What is suspense?

A reference to some thing outside of the story
The perspective, from which a story is told
And uncertainty about what will happen next in a story
A struggle between opposing forces in a story

Suspense is uncertainty about what will happen next in a story. It is the tension and anticipation that keeps readers or viewers engaged and eager to find out the resolution of the plot. Suspense can be created through a variety of techniques such as withholding information, creating a sense of danger or mystery, and building up to a climactic moment.