pump sth up Meaning in Cambridge English Dictionary
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Meaning of "pump sth up" - English Dictionary

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pump sth up

phrasal verb with pump uk   us   /pʌmp/ verb
to fill something with air using a pump: Have you pumped up the balloons yet? I must pump the tyres up on my bike. informal to increase something by a large amount: The US was able to pump up exports. Let's pump up the volume a bit!
(Definition of pump sth up from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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