An overhand knot is a simple and commonly used knot that is formed by taking a length of rope or string and tying it into a loop. The end of the rope is passed over the standing part and then pulled through the loop, creating a secure knot. This knot is often used in various applications, such as fishing, camping, and climbing. While the overhand knot is easy to tie, it is not the most secure option for heavy loads. It can slip or jam under pressure. For more secure applications, knots like the bowline or double knot are often recommended.