Kiai
A short shout used to startle, intimidate, or express victory.
A kiai is a short shout uttered during an assault in Japanese martial arts. Traditional Japanese dojo typically use single syllables beginning with a vowel, and the practice has become a part of Asian martial arts in popular culture, especially in martial arts films. It is often rendered in writing as variants such as Hi-yah!, Aiyah!, or Hyah!, but is usually not the word 'kiai' itself.
Quick Facts
- Compound term
- ki (気) meaning 'energy' or 'mood' and a(u) (合, infinitive ai), an emphatic marker
- Korean equivalent
- kihap (기합), used in taekwondo and Tang Soo Do
Facts from the source article.
Did You Know?
- In the board game Go, the term describes fighting spirit.
- The same concept is known as kihap in many Korean martial arts, such as taekwondo and Tang Soo Do.
- The Korean reading of the same characters gives ki as energy and hap meaning to join, harmonize, or amplify.
Use in martial arts
In Japanese martial arts like aikido, karate, kobudo, kendo, taido, or judo—and in taiko drumming—a kiai is a sharp yell used to startle an opponent, show confidence, intimidate, or mark a victory. In kendo, referees only award a point if the strike comes with a strong, convincing kiai. Tightening the core muscles while shouting can also help protect the stomach from impact. The physical act of the kiai teaches proper breathing during attacks, a technique that has spread to many other martial arts and combat sports. It is especially useful for intimidating opponents during long attack sequences such as kirikaeshi, kakari geiko, and uchikomi geiko. Martial artists are taught to imagine the yell starting from the hara or dantian; physiologically, this means the sound should come from the diaphragm, not the throat.
More in Japanese Martial Arts
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