Scheme arch is a structural element that is commonly found in architectural designs. This type of arch is usually designed to support a building's weight and provide stability. Synonyms for scheme arch can include "structural arch," "supporting arch," "load-bearing arch," and "stability arch." Structural arch indicates the arch's main function, whereas supporting arch emphasizes its role in supporting the building's weight. Load-bearing arch highlights the arch's ability to carry a heavy load, while stability arch denotes its contribution to maintaining the building's stability. These synonyms can be used interchangeably depending on the context, but they all convey the same message -- a scheme arch is an essential component in a building's structure.