A-un-no-kokyu (n.) 1. A complimentary rhythm of respiration between two competitors. 2. The careful control of movements and timing during kata performance. Pronunciation of the vowels "A" and "Un" represent the process of inspiration and expiration. In Sanskrit, the vowel "A" is the first vowel voiced with the mouth open, and "Un" is the last vowel voiced with the mouth closed; together they symbolize a universal beginning and end.