backdrop
n. countablen. the setting or background for an event. It can be a physical scene, like a mountain behind a house, or a situation, like a war happening during a story.
n. the setting or background against which an event or scene occurs. Often used figuratively to describe the social, political, or historical circumstances surrounding a situation.
The mountains provide a beautiful backdrop for the wedding photos.
The novel is set against the backdrop of the French Revolution, which influences every choice the characters make.
While the physical backdrop of the play remained static, the shifting lighting and sound design created a sense of movement that mirrored the protagonist's internal emotional journey.
From back + drop.
Often used with the preposition 'against' ('against the backdrop of').