To make preparations for vigorous exercise; to warm up.
To make adjustments (to an engine or bicycle drivetrain) in order to improve its performance.
To tune one's instrument in preparation for performance.
To begin to sing or play music.
To beat up (someone).
To do gentle exercise, stretching etc., in order to prepare the body for more vigorous exercise.
To reach, or cause to reach, a normal operating temperature (of a car for example).
To become warmer.
To heat or reheat (e.g. food).
To make (an audience) enthusiastic or animated before a show
To prepare for an activity by carrying out a practice or preparation routine.