A knife is a tool used to cut an object. The knife consists of two main parts, namely the blade and the handle or handle of the knife. Blade blades made of flat metal with sharp edges; this sharp edge is called a blade. The handle of the knife is generally elongated so that it can be held by hand.

The general form of a knife is similar to a sword, the difference is that the sword blade is longer than the blade of a knife.

If the knife is too small to cut something, a saw or ax may be needed.