[n] a mechanical device that moves fluid or gas by pressure or suction
[n] a low-cut shoe without fastenings
[n] 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"
[v] question persistently; "She pumped the witnesses for information"
[v] deliver forth; "pump bullets into the dummy"
[v] operate like a pump; move up and down, like a handle or a pedal
[v] raise with a pump; of gases or fluids
[v] move up and down, as of weights
[v] draw or pour with a pump
[v] flow intermittently
[v] supply in great quantities; "Pump money into a project"