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
round, lump, ball, to roll into a ball, to gather, regiment, group, society, classifier for a lump or a soft mass: wad (of paper), ball (of wool), cloud (of smoke)