What does "exposition" mean in a story?

In a story, "exposition" refers to the part of the narrative where the background information is introduced, which includes vital elements such as the setting, characters, and the context of the story. This foundational information is crucial for understanding the characters' motivations and the environment in which they operate. Through the exposition, readers gain insight into the time and place of the story, as well as any relevant history that might influence the plot. By establishing this backdrop, the exposition sets the stage for the conflicts and events that will unfold later in the story, allowing the reader to fully engage with the narrative.