Noun

• S: (n) warm up (performing mild exercises to prepare for some more strenuous activity) "the singers have to warm up"; "the marathon runner did not warm up and hurt himself"

Verb

• S: (v) warm up (run until the normal working temperature is reached) "We warmed up the car for a few minutes"
• S: (v) warm up (become more friendly or open) "She warmed up after we had lunch together"
• S: (v) warm, warm up (get warm or warmer) "The soup warmed slowly on the stove"
• S: (v) warm up (cause to do preliminary exercises so as to stretch the muscles) "The coach warmed up the players before the game"
• S: (v) limber up, warm up, loosen up (make one's body limber or suppler by stretching, as if to prepare for strenuous physical activity)