The timber hitch is a knot

Knot

A knot is a method of fastening or securing linear material such as rope by tying or interweaving. It may consist of a length of one or several segments of rope, string, webbing, twine, strap, or even chain interwoven such that the line can bind to itself or to some other object—the "load"...

 used to attach a single length of rope

Rope

A rope is a length of fibres, twisted or braided together to improve strength for pulling and connecting. It has tensile strength but is too flexible to provide compressive strength...

 to a piece of wood

Wood

Wood is a hard, fibrous tissue found in many trees. It has been used for hundreds of thousands of years for both fuel and as a construction material. It is an organic material, a natural composite of cellulose fibers embedded in a matrix of lignin which resists compression...

. This knot is easily undone after use.

To make the knot, pass the rope completely around the wood. Pass the running end around the standing part, then through the loop that you have just formed. Make three turns

Turn (knot)

A turn is one round of rope on a pin or cleat, or one round of a coil. Turns can be made around various objects, through rings, or around the standing part of the rope itself or another rope. A turn also denotes a component of a knot....

 around the loop then pull on the standing part to tighten. Take care that you double the rope back on itself before making the three turns, or it won't hold.

This knot is also known as the Bowyer's Knot as it is used to attach the lower end of the bowstring to the bottom limb on an English longbow

English longbow

The English longbow, also called the Welsh longbow, is a powerful type of medieval longbow about 6 ft long used by the English and Welsh for hunting and as a weapon in medieval warfare...

.

This knot is also very commonly used to attach ukulele

Ukulele

The ukulele, ; from ; it is a subset of the guitar family of instruments, generally with four nylon or gut strings or four courses of strings....

 strings to the bridge of the instrument, and it is also used on classical acoustic guitars.Also used to drag heavy items like logs around. Falls apart almost instantly when the pull ceases.

The Killick hitch

The Killick hitch

Killick hitch

The killick hitch is a type of hitch knot used to attach a rope to oddly shaped objects. This knot, also known as the kelleg hitch, is an alteration of the timber hitch.-Use and history:...

is a variant of the timber hitch used to hoist rocks and other objects with irregular shapes.