A utensil or a tool designed for cutting, consisting of a flat piece of hard material, usually steel or other metal (the blade), usually sharpened on one edge, attached to a handle. The blade may be pointed for piercing.
A weapon designed with the aforementioned specifications intended for slashing or stabbing but too short to be called a sword; a dagger.
Any blade-like part in a tool or a machine designed for cutting, such as that of a chipper.