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
eye (CL:隻|只[zhi1],雙|双[shuang1]), (often used with 一[yi1]) a look; a glance, small hole, (bound form) salient point, classifier for wells, cave-dwellings etc