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English definition of “warm up (something)”

warm up (something)

(PRACTICE) phrasal verb with warm    /wɔrm/ verb [I/T]
to exercise or practice in order to prepare for something that takes a lot of effort: Ballet dancers have to warm up before performing. A new pitcher is warming up in the bullpen. She warms up her voice by singing scales. If you warm up a car, you let the engine get warm enough to work well.
(Definition of warm up (something) (PRACTICE) from the Cambridge Academic Content Dictionary © Cambridge University Press)
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