tip·toe /ˈtɪpˌto, ˈto/
  腳尖,翹望(vi.)用腳尖走(ad.)用腳尖(a.)踮著腳的,偷偷摸摸的
  Tip·toe n.; pl. Tiptoes  The end, or tip, of the toe.
     He must . . . stand on his typtoon [tiptoes].   --Chaucer.
     Upon his tiptoes stalketh stately by.   --Spenser.
  To be a tiptoe, To stand a tiptoe, To stand on tiptoe or To be on tiptoe, to be awake or alive to anything; to be roused; to be eager or alert; as, to be a tiptoe with expectation.
  Tip·toe a.
  1. Being on tiptoe, or as on tiptoe; hence, raised as high as possible; lifted up; exalted; also, alert.
  Night's candles are burnt out, and jocund day
  Stands tiptoe on the misty mountain tops.   --Shak.
     Above the tiptoe pinnacle of glory.   --Byron.
  2. Noiseless; stealthy. “With tiptoe step.”
  Tiptoe mirth, the highest degree of mirth.
  Tip·toe, v. i. To step or walk on tiptoe.
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  tiptoe
       adj : walking on the tips of ones's toes so as to make no noise;
             "moving with tiptoe steps"
       n : the tip of a toe
       adv : on tiptoe or as if on tiptoe; "standing tiptoe"
       v : walk on one's toes [syn: tip, tippytoe]