stop·per /ˈstɑpɚ/
  阻止的人,木塞,制止器(vt.)用塞子塞住,閉嘴
  stopper
  定位器
  Stop·per n.
  1. One who stops, closes, shuts, or hinders; that which stops or obstructs; that which closes or fills a vent or hole in a vessel.
  2. Naut. A short piece of rope having a knot at one or both ends, with a lanyard under the knot, -- used to secure something.
  3. Bot. A name to several trees of the genus Eugenia, found in Florida and the West Indies; as, the red stopper. See Eugenia.
  Ring stopper Naut., a short rope or chain passing through the anchor ring, to secure the anchor to the cathead.
  Stopper bolt Naut., a large ringbolt in a ship's deck, to which the deck stoppers are hooked.
  Stop·per, v. t. [imp. & p. p. Stoppered p. pr. & vb. n. Stoppering.] To close or secure with a stopper.
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  stopper
       n 1: blockage consisting of an object designed to fill a hole
            tightly [syn: plug, stopple]
       2: an act so striking or impressive that the show must be
          delayed until the audience quiets down [syn: show-stopper,
           showstopper]
       3: a remark to which there is no polite conversational reply
          [syn: conversation stopper]
       4: (bridge) a playing card with a value sufficiently high to
          insure taking a trick in a particular suit; "if my partner
          has a spade stopper I can bid no trump"
       v : close or secure with or as if with a stopper; "She stoppered
           the wine bottle"; "The mothers stoppered their babies'
           mouths with pacifiers" [syn: stopple]