A sawhorse is a type of support used in carpentry and other woodworking projects. It is a four-legged structure, usually made of wood, with a flat top that can be used to support boards or other materials while they are being cut or worked on. The term 'sawhorse' is derived from the fact that it resembles a horse with its legs spread apart. The term 'TRESTLE' is also used to describe a sawhorse, as it is a type of TRESTLE, which is a structure consisting of two or more supports connected by a horizontal beam.