The term 'CARPENTER's Nail' is a type of nail used by carpenters in woodworking. It is also known as a BRAD, which is a four-letter word that can be used to solve the crossword puzzle. The CARPENTER's Nail is a thin nail with a small head and a sharp point. It is usually made of steel and is used to join two pieces of wood together. It is also used to attach trim or molding to furniture and other woodworking projects.