Definition of "Pump" :
noun: a mechanical device that moves fluid or gas by pressure or suction
noun: a low-cut shoe without fastenings
noun: the hollow muscular organ located behind the sternum and between the lungs; its rhythmic contractions move the blood through the body
verb: question persistently
"She pumped the witnesses for information."
verb: deliver forth
"Pump bullets into the dummy."
verb: operate like a pump; move up and down, like a handle or a pedal
"Pump the gas pedal."
verb: raise (gases or fluids) with a pump
verb: move up and down
"The athlete pumps weights in the gym."
verb: draw or pour with a pump
verb: flow intermittently
verb: supply in great quantities
"Pump money into a project."