What is the meaning of Valance?

A short curtain that usually hangs along the top edge of a window.

A decorative framework used to conceal the curtain mechanism and so on at the top of a window.

A short, decorative edging of cloth that hangs from a bed, from beneath the mattress to the floor, used to conceal the box spring or space under the bed and prevent dust from accumulating there.

A short, decorative edging of cloth that conceals the legs of a couch, sofa, etc.

A low-hanging auto body panel, below a front or rear bumper, whose purpose is aerodynamic and decorative but not structural (often valance panel).

The drooping edging of the lid of a trunk, which covers the joint when the lid is closed.

Source: wiktionary.org