pump in WordNet English dictionary

1. 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"
   heart  pump  ticker 
   
2. a mechanical device that moves fluid or gas by pressure or suction
   pump 
   
3. a low-cut shoe without fastenings
   pump 
   

1. question persistently
   "She pumped the witnesses for information"
   pump 
   
2. deliver forth
   "pump bullets into the dummy"
   pump 
   
3. operate like a pump; move up and down, like a handle or a pedal
   "pump the gas pedal"
   pump 
   
4. raise (gases or fluids) with a pump
   pump 
   
5. draw or pour with a pump
   pump 
   
6. flow intermittently
   pump 
   
7. move up and down
   "The athlete pumps weights in the gym"
   pump 
   
8. supply in great quantities
   "Pump money into a project"
   pump