The Collaborative International Dictionary of English v.0.48:

Pump \Pump\, v. i.
   To work, or raise water, a pump.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Pump \Pump\ (p[u^]mp), n. [Probably so called as being worn for
   pomp or ornament. See Pomp.]
   A low shoe with a thin sole. --Swift.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Pump \Pump\, v. t. [imp. & p. p. Pumped (p[u^]mt; 215); p. pr.
   & vb. n. pumping.]
   1. To raise with a pump, as water or other liquid.
      [1913 Webster]

   2. To draw water, or the like, from; to from water by means
      of a pump; as, they pumped the well dry; to pump a ship.
      [1913 Webster]

   3. Figuratively, to draw out or obtain, as secrets or money,
      by persistent questioning or plying; to question or ply
      persistently in order to elicit something, as information,
      money, etc.
      [1913 Webster]

            But pump not me for politics.         --Otway.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Pump \Pump\, n. [Akin to D. pomp, G. pumpe, F. pompe; of unknown
   origin.]
   An hydraulic machine, variously constructed, for raising or
   transferring fluids, consisting essentially of a moving piece
   or piston working in a hollow cylinder or other cavity, with
   valves properly placed for admitting or retaining the fluid
   as it is drawn or driven through them by the action of the
   piston.
   [1913 Webster]

   Note: for various kinds of pumps, see Air pump, Chain
         pump, and Force pump; also, under Lifting,
         Plunger, Rotary, etc.
         [1913 Webster]

   Circulating pump (Steam Engine), a pump for driving the
      condensing water through the casing, or tubes, of a
      surface condenser.

   Pump brake. See Pump handle, below.

   Pump dale. See Dale.

   Pump gear, the apparatus belonging to a pump. --Totten.

   Pump handle, the lever, worked by hand, by which motion is
      given to the bucket of a pump.

   Pump hood, a semicylindrical appendage covering the upper
      wheel of a chain pump.

   Pump rod, the rod to which the bucket of a pump is
      fastened, and which is attached to the brake or handle;
      the piston rod.

   Pump room, a place or room at a mineral spring where the
      waters are drawn and drunk. [Eng.]

   Pump spear. Same as Pump rod, above.

   Pump stock, the stationary part, body, or barrel of a pump.


   Pump well. (Naut.) See Well.
      [1913 Webster]

WordNet (r) 3.0 (2006):

pump
    n 1: a mechanical device that moves fluid or gas by pressure or
         suction
    2: the hollow muscular organ located behind the sternum and
       between the lungs; its rhythmic contractions move the blood
       through the body; "he stood still, his heart thumping wildly"
       [syn: heart, pump, ticker]
    3: a low-cut shoe without fastenings
    v 1: operate like a pump; move up and down, like a handle or a
         pedal; "pump the gas pedal"
    2: deliver forth; "pump bullets into the dummy"
    3: draw or pour with a pump
    4: supply in great quantities; "Pump money into a project"
    5: flow intermittently
    6: move up and down; "The athlete pumps weights in the gym"
    7: raise (gases or fluids) with a pump
    8: question persistently; "She pumped the witnesses for
       information"