Source : Webster's Revised Unabridged Dictionary (1913)

Pipe \Pipe\, n. [AS. p[=i]pe, probably fr. L. pipare, pipire, to
   chirp; of imitative origin. Cf. {Peep}, {Pibroch}, {Fife}.]
   1. A wind instrument of music, consisting of a tube or tubes
      of straw, reed, wood, or metal; any tube which produces
      musical sounds; as, a shepherd's pipe; the pipe of an
      organ. ``Tunable as sylvan pipe.'' --Milton.

            Now had he rather hear the tabor and the pipe.
                                                  --Shak.

   2. Any long tube or hollow body of wood, metal, earthenware,
      or the like: especially, one used as a conductor of water,
      steam, gas, etc.

   3. A small bowl with a hollow steam, -- used in smoking
      tobacco, and, sometimes, other substances.

   4. A passageway for the air in speaking and breathing; the
      windpipe, or one of its divisions.

   5. The key or sound of the voice. [R.] --Shak.

   6. The peeping whistle, call, or note of a bird.

            The earliest pipe of half-awakened birds.
                                                  --Tennyson.

   7. pl. The bagpipe; as, the pipes of Lucknow.

   8. (Mining) An elongated body or vein of ore.

   9. A roll formerly used in the English exchequer, otherwise
      called the Great Roll, on which were taken down the
      accounts of debts to the king; -- so called because put
      together like a pipe. --Mozley & W.

   10. (Naut.) A boatswain's whistle, used to call the crew to
       their duties; also, the sound of it.

   11. [Cf. F. pipe, fr. pipe a wind instrument, a tube, fr. L.
       pipare to chirp. See Etymol. above.] A cask usually
       containing two hogsheads, or 126 wine gallons; also, the
       quantity which it contains.

   {Pipe fitter}, one who fits pipes together, or applies pipes,
      as to an engine or a building.

   {Pipe fitting}, a piece, as a coupling, an elbow, a valve,
      etc., used for connecting lengths of pipe or as accessory
      to a pipe.

   {Pipe office}, an ancient office in the Court of Exchequer,
      in which the clerk of the pipe made out leases of crown
      lands, accounts of cheriffs, etc. [Eng.]

   {Pipe tree} (Bot.), the lilac and the mock orange; -- so
      called because their were formerly used to make pipe
      stems; -- called also {pipe privet}.

   {Pipe wrench}, or {Pipetongs}, a jawed tool for gripping a
      pipe, in turning or holding it.

   {To smoke the pipe of peace}, to smoke from the same pipe in
      token of amity or preparatory to making a treaty of peace,
      -- a custom of the American Indians.

Source : WordNet®

pipe wrench
     n : adjustable wrench for gripping and turning a pipe; has two
         serrated jaws that are adjusted to grip the pipe [syn: {tube
         wrench}]