one / single / a (article) / as soon as / entire; whole; all; throughout / "one" radical in Chinese characters (Kangxi radical 1) / also pr. [yao1] for greater clarity when spelling out numbers digit by digit
tenth of the ten Heavenly Stems 十天干[shi2 tian1 gan1] / tenth in order / letter "J" or Roman "X" in list "A, B, C", or "I, II, III" etc / ancient Chinese compass point: 15° / deca