T‘ai-chi (Mandarin: tàijí 太極, an abbreviation of tàijí quán 太極拳, literally "Supreme Ultimate Boxing") is an internal Chinese martial art 武术practiced for both its defense training and its health benefits. Though originally conceived as a martial art, it is also typically practiced for a variety of other personal reasons: competitive wrestling in the format of pushing hands (tui shou), demonstration competitions, and achieving greater longevity. As a result, a multitude of training forms exist, both traditional and modern, which correspond to those aims with differing emphasis. Some training forms of t‘ai-chi ch‘üan are especially known for being practiced with relatively slow movements.
Today, t‘ai-chi ch‘üan has spread worldwide. Most modern styles of t‘ai-chi ch‘üan trace their development to at least one of the five traditional schools: Chen, Yang, Wu (Hao), Wu, and Sun. All of the former, in turn, trace their historical origins to Chen Village.
Martial arts are codified systems and traditions of combat practices, which are practiced for a number of reasons: as self-defense, military and law enforcement applications, mental and spiritual development; as well as entertainment and the preservation of a nation's intangible cultural heritage.