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(1)   A mechanical device that moves fluid or gas by pressure or suction
(2)   A low-cut shoe without fastenings
(3)   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"


(4)   Question persistently
"She pumped the witnesses for information"
(5)   Deliver forth
"Pump bullets into the dummy"
(6)   Operate like a pump; move up and down, like a handle or a pedal
"Pump the gas pedal"
(7)   Raise (gases or fluids) with a pump
(8)   Move up and down
"The athlete pumps weights in the gym"
(9)   Draw or pour with a pump
(10)   Flow intermittently
(11)   Supply in great quantities
"Pump money into a project"

Etymology 1

From ; compare German and Dutch


  1. A device for moving or compressing a liquid or gas.
    This pump can deliver 100 gallons of water per minute.
  2. An instance of the action of a pump; one stroke of a pump; any action similar to pumping
    It takes thirty pumps to get 10 litres ; he did 50 pumps of the weights.
  3. A device for dispensing liquid or gas to be sold, particularly fuel.
    This pump is out of order, but you can gas up at the next one.
  4. A swelling of the muscles caused by increased blood flow following high intensity weightlifting.
  5. A ride on a bicycle given to a passenger, usually on the handlebars or fender.
    She gave the other girl a pump on her new bike.
  6. The heart.


  1. A type of shoe, a trainer or sneaker.
  2. A type of very high-heeled shoe; stilettoes.
    She was wearing a lovely new pair of pumps.


  1. To use a pump to move (liquid or gas).
    I've pumped over 1000 gallons of water in the last ten minutes.
  2. (often followed by up) To fill with air.
    He pumped up the air-bed by hand, but used the service station air to pump up the tyres.
  3. To move rhythmically, as the motion of a pump.
    I pumped my fist with joy when I won the race.
  4. To shake (a person's hand) vigorously.
  5. To gain information from (a person) by persistent questioning.
  6. To use a pump to move liquid or gas.
    I've been pumping for over a minute but the water isn't coming through.
  7. To be going very well.
    The waves were really pumping this morning.
    Last night's party was really pumping.