noun

1. any of various machines that force a liquid or gas into or through, or draw it out of, something, as by suction or pressure
2. Informal the heart

Etymology: ME pumpe < MDu pompe < Sp bomba, prob. of echoic orig.

transitive verb

1. to raise or move (fluids) with a pump
2. to remove water, etc. from, as with a pump
3. to drive air into with a pump or bellows
4. to force in, draw out, drive, move up and down, pour forth, etc. by means of a pump or as a pump does
5. to apply force to with a pumping, up-and-down motion
6. Informal
   1. to question closely and persistently
   2. to get (information) from a person in this way
7. Physics to transfer or inject energy into (particles, the electrons of a laser, etc.)

intransitive verb

1. to work a pump
2. to raise or move water, etc. with a pump
3. to move up and down or go by moving up and down like a pump handle or piston
4. to flow in, out, or through by, or as if by, being pumped
5. Basketball, Football to fake a shot or a throw

noun

Etymology: < ? prob. < Fr colloq. pompe, boot, shoe, lit. pump: jocular for a shoe which pumps in the water