warm up

definition: run until the normal working temperature is reached
example:
speech part: verb
synonyms:
definition: make one's body limber or suppler by stretching, as if to prepare for strenuous physical activity
example:
speech part: verb
synonyms: loosen up
definition: cause to do preliminary exercises so as to stretch the muscles
example:
speech part: verb
synonyms:
definition: become more friendly or open
example:
speech part: verb
synonyms:
definition: get warm or warmer
example:
speech part: verb
synonyms: warm

How warm up is being used?