noun a groove cut in the base of a board or panel for joining purposes
noun a long, narrow cut or depression, especially one made to guide motion or receive a corresponding ridge
verb to establish a groove or grooves on or in
noun a seat fastened on the back of a horse or other animal for riding
verb to put a saddle on a horse or other animal
noun a framework consisting of a horizontal beam supported by two pairs of sloping legs, used to support a bridge or platform