Backband is a term commonly used in the architectural industry. It refers to a strip of molding that is applied to the back of a door or window frame to add dimension or decoration. There are several synonyms for backband that can be used interchangeably, including back edge, back molding, back rail, and back strip. Each of these terms describes a molding that runs along the back edge of a frame, typically used for decorative purposes rather than structural support. Additionally, the term backband may also be used to describe a type of horse saddle that provides additional support to the rider's back.