Kiai

==Use in martial arts== In martial arts, the term commonly refers to a short yell made before, during, or after a technique. Students of Japanese martial arts such as aikido, karate, kobudo, kendo, or judo (or related arts such as taiko drumming) use kiai to startle an opponent, intimidate, express confidence, or express victory. In kendo, for exa...
Found on http://en.wikipedia.org/wiki/Kiai

Kiai

A kiai is a shout in kendo which must accompany a blow for a point to be scored. It has three purposes; it emphasises the point to be attacked, helps with the co-ordination and unnerves the opponent.
Found on http://www.probertencyclopaedia.com/browse/OK.HTM

kiai

A shout delivered for the purpose of focusing all of one's energy into a single movement. Even when audible KIAI are absent, one should try to preserve the feeling of KIAI at certain crucial points within Karate techniques. Manifestation of KI (simultaneous union of spirit and expression of physical strength).
Found on http://www.jkra.com/karate_glossary.htm

Kiai

Martial shout
Found on http://www.kugb.org/kugb-karate-terminology.php

kiai

spirit convergence, often coinciding with a yell
Found on http://www.encyclo.co.uk/local/21569
No exact match found