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
to cover, to encase, cover, sheath, to overlap, to interleave, to model after, to copy, formula, harness, loop of rope, (fig.) to fish for, to obtain slyly, classifier for sets, collections, bend (of a river or mountain range, in place names), tau (Greek letter Ττ)