pump

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A woman's shoe that has medium or high heels and no fastenings.
• noun A machine or device for raising, compressing, or transferring fluids.
• noun Physiology A molecular mechanism for the active transport of ions or molecules across a cell membrane.
• noun Physics Electromagnetic radiation used to raise atoms or molecules to a higher energy level.
• noun Informal The heart.
• noun Informal The place where consumers purchase gasoline. Used with the.
• intransitive verb To cause to flow by means of a pump or pumplike organ or device.
• intransitive verb To draw, deliver, or pour forth.
• intransitive verb To propel, eject, or insert.
• intransitive verb To cause to move with an up-and-down or back-and-forth motion.
• intransitive verb To push or pull (a brake or lever, for instance) rapidly.
• intransitive verb To shoot (bullets, for example) at or into.
• intransitive verb Physics To raise (atoms or molecules) to a higher energy level by exposing them to electromagnetic radiation at a resonant frequency.
• intransitive verb Physiology To transport (ions or molecules) against a concentration gradient by the expenditure of chemically stored energy.
• intransitive verb To invest (money) repeatedly or persistently in something.
• intransitive verb To question closely or persistently.
• intransitive verb Informal To promote or publicize vigorously.
• intransitive verb To operate a pump.
• intransitive verb To move gas or liquid with a pump or a pumplike organ or device.
• intransitive verb To move up and down or back and forth in a vigorous manner.
• intransitive verb To flow in spurts.
• intransitive verb Sports To fake a throw, pass, or shot by moving the arm or arms without releasing the ball.
• idiom (pump iron) To lift weights.

from The Century Dictionary.

• To work a pump; raise water or other liquid with a pump.
• To raise with a pump: as, to pump water.
• To free from water or other fluid by means of a pump or pumps: as, to pump a ship.
• To elicit or draw out by or as by artful interrogation: as, to pump out secrets.
• To subject to a pumping process for the purpose of extracting, procuring, or obtaining something, such as money, information, or secrets.
• noun One of several kinds of hydraulic and pneumatic machines.
• noun [⟨ pump, verb] An artful effort to extract or elicit information, as by indirect question or remark.
• noun A low shoe or slipper, with a single unwelted sole, and without a heel, or with a very low heel, worn chiefly for dancing.
• To throb; beat.
• To issue in intermittent jets, as blood from a wounded artery.

from the GNU version of the Collaborative International Dictionary of English.

• noun A low shoe with a thin sole.
• intransitive verb To work, or raise water, a pump.
• transitive verb To raise with a pump, as water or other liquid.
• transitive verb To draw water, or the like, from; to from water by means of a pump
• transitive verb 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.
• noun 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.
• noun (Steam Engine) a pump for driving the condensing water through the casing, or tubes, of a surface condenser.
• noun See Pump handle, below.
• noun See Dale.
• noun the apparatus belonging to a pump.
• noun the lever, worked by hand, by which motion is given to the bucket of a pump.
• noun a semicylindrical appendage covering the upper wheel of a chain pump.
• noun the rod to which the bucket of a pump is fastened, and which is attached to the brake or handle; the piston rod.
• noun [Eng.] a place or room at a mineral spring where the waters are drawn and drunk.