To hem a piece of cloth (in sewing), a garment worker folds up a cut edge, folds it up again, and then sews it down. The process of hemming thus completely encloses the cut edge in cloth, so that it can't ravel. A hem's also the edge of cloth treated in this manner. The hem may be sewn down with a line of invisible hem-stitch or blind-stitch or sewn down by a sewing machine, usually leaving a visible line of sewing. Modern sewing machines designed for home use can make many decorative or functi… (More on Hem)