Tightrope walking, also called funambulism, is the skill of walking along a thin wire or rope. It has a long tradition in various countries and is commonly associated with the circus.

Tightwire is the skill of maintaining balance while walking along a tensioned wire between two points. It can be done either using a balancing tool (umbrella, fan, balance pole, etc.) or "freehand", using only one's body to maintain balance. Typically, tightwire performances either include dance or object manipulation. Object manipulation acts include a variety of props in their acts, such as clubs, rings, hats, or canes. Tightwire performers have even used wheelbarrows with passengers, ladders, and animals in their act. The technique to maintain balance is to keep the performer's centre of mass above their support point—usually their feet.

Highwire is a form of tightwire walking but performed at much greater height. Although there is no official height when tightwire becomes highwire, generally a wire over 20 feet (6 m) high are regarded as a highwire act.

Skywalk is a form of highwire which is performed at a much greater height. A skywalk is performed outdoors between tall buildings, gorges, across waterfalls or other natural and man-made structures.

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