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pump

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noun [countable] pump pronunciation in British English /pʌmp/ 
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singularpump
pluralpumps
  1. 1
    a piece of equipment for making a liquid or gas move into or out of something

    an air/a fuel pump

    a hand/foot pump (=operated with your hand or foot)

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chicken raffle

any random process, such as a competition in which a name is drawn from a hat

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