The term 'Projecting Piece' is a type of carpentry joint that is used to join two pieces of wood together. It is also known as a TENON, which is a five-letter word that is commonly used in crossword puzzles. The TENON is a projecting piece of wood that is cut to fit into a mortise, which is a cavity cut into the other piece of wood. This joint is very strong and is often used in furniture construction.