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warm up

(EXERCISE) phrasal verb with warm
 
/wɔːm/
 
US  /wɔːrm/ verb [I or T]

Definition

to prepare yourself for a physical activity by doing some gentle exercises and stretches: If you don't warm up before taking exercise, you risk injuring yourself.Exercising and training
(Definition of warm up (EXERCISE) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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