Kiai

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In Japanese martial arts a kiai (Japanese: 気合, /ˈkiːaɪ/) is a short shout uttered when performing an assault.

Traditional Japanese dojo generally uses single syllables beginning with a vowel. The practice has become a part of Asian martial arts in popular culture, especially in martial arts films, in writing often rendered in variants such as Hi-yah!, Aiyah!, Eeee-yah! or Hyah!.^{[citation needed]} A kiai is usually not the word "kiai" itself.