warm up

verb warms up · warming up · warmed up

1. intransitive To become warmer. He came inside to warm up.
2. transitive To heat or reheat (e.g. food). I couldn't be bothered to cook another meal so I just warmed up yesterday's leftovers.
3. intransitive, transitive To reach, or cause to reach, a normal operating temperature (of a car for example). These old valve radios take a few minutes to warm up.
4. figuratively, intransitive To do gentle exercise, stretching etc., in order to prepare the body for more vigorous exercise. It is important to warm up properly before your gym session.
5. figuratively, intransitive To prepare for an activity by carrying out a practice or preparation routine. The band were already on stage, warming up for the gig.
6. figuratively, transitive To make (an audience) enthusiastic or animated before a show. Rich knew how to warm up the audience of The Price is Right. His good looks and charming personality made even that special.
7. figuratively, intransitive Synonym of warm (to favor increasingly).
8. transitive Synonym of warm (“prepopulate a cache”).
9. Internet, transitive Synonym of warm (“send mail from a domain to improve reputation”).