"pump" in the noun sense
1. pump
a mechanical device that moves fluid or gas by pressure or suction
2. heart, pump, ticker
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"
3. pump
a low-cut shoe without fastenings
"pump" in the verb sense
1. pump
operate like a pump move up and down, like a handle or a pedal
"pump the gas pedal"
2. pump
deliver forth
"pump bullets into the dummy"
3. pump
draw or pour with a pump
4. pump
supply in great quantities
"Pump money into a project"
5. pump
flow intermittently
6. pump
move up and down
"The athlete pumps weights in the gym"
7. pump
raise (gases or fluids) with a pump
8. pump
question persistently
"She pumped the witnesses for information"
Source: WordNet® (An amazing lexical database of English)
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