English

Definition of pump up phrasal verb from the Oxford Advanced Learner's Dictionary

 

pump up

 phrasal verb
phrasal verb Excitement
 
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Phrasal Verbs
[usually passive] to make somebody feel more excited or determined See related entries: Excitement
  1. 1to fill a tyre, etc. with air using a pump
  2. 2(informal) to increase the amount, value or volume of something Interest rates were pumped up last week.
See the Oxford Advanced American Dictionary entry: pump up