1. （装饰床沿的）挂布，挂帘，短帷幔
A valance is a piece of cloth that hangs down over the sides of a bed in order to make it look nice.

2. （窗户顶部的）木框，短帷幔
A valance is a long narrow piece of wood or fabric which is fitted at the top of a window for decoration and to hide the curtain rail.

noun

1. a decorative framework to conceal curtain fixtures at the top of a window casing

Synonym: cornicevalance boardpelmet