pump

a mechanical device that moves fluid or gas by pressure or suction

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”

a low-cut shoe without fastenings

operate like a pump; move up and down, like a handle or a pedal; “pump the gas pedal”

deliver forth; “pump bullets into the dummy”

draw or pour with a pump

supply in great quantities; “Pump money into a project”

flow intermittently

move up and down; “The athlete pumps weights in the gym”

raise (gases or fluids) with a pump

question persistently; “She pumped the witnesses for information”