In furniture, a mortise typically refers to a rectangular hole or cavity that is cut into a piece of wood, typically the end or side of a board or timber. The purpose of a mortise is to receive and hold another piece of wood, known as a tenon, which is specifically shaped to fit snugly into the mortise. The mortise and tenon joint is a common method of joinery in furniture making, as it provides strength, stability, and durability. It is often found in chairs, tables, cabinets, and other wooden furniture pieces to join different parts together. Slot or hole in wood, into which the tongue or tenon fix. Joint in woodworking.