Meaning & Definition of Pump in English

1. A mechanical device that moves fluid or gas by pressure or suction

2. 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. A low-cut shoe without fastenings

1. Operate like a pump

• Move up and down, like a handle or a pedal

• "Pump the gas pedal"

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

• "The athlete pumps weights in the gym"

7. Raise (gases or fluids) with a pump

8. Question persistently

• "She pumped the witnesses for information"