n 1: a mechanical device that moves fluid or gas by pressure or
2: the hollow muscular organ located behind the sternum and
between the lungs; its rhythmic contractions pump blood
through the body; "he stood still, his heart thumping
wildly" [syn: heart
3: a low-cut shoe without fastenings [syn: pumps
v 1: operate like a pump; move up and down, like a handle or a
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, as of weights
7: raise with a pump; of gases or fluids
8: question persistently; "She pumped the witnesses for