A düğüm, or knot, is a method of fastening or securing two or more lengths of material, typically rope or string. Knots are used in various applications, including sailing, climbing, and crafting. They can serve practical purposes, such as creating loops, joining materials, or providing grip. There are many types of düğümler, each designed for specific tasks. For example, the bowline knot creates a fixed loop at the end of a rope, while the square knot is used to join two ropes of similar thickness. Understanding different knots is essential for safety and efficiency in activities like fishing and camping.