pump definition

1. a mechanical device that moves fluid or gas by pressure or suction
2. a low-cut shoe without fastenings
3. operate like a pump; move up and down, like a handle or a pedal
• examples: pump the gas pedal
4. deliver forth
• examples: pump bullets into the dummy
5. draw or pour with a pump
6. supply in great quantities
• examples: Pump money into a project
7. flow intermittently
8. move up and down
• examples: The athlete pumps weights in the gym
9. raise (gases or fluids) with a pump
10. question persistently
• examples: She pumped the witnesses for information