Work out

Definition of workout

1 : a practice or exercise to test or improve one's fitness for athletic competition, ability, or performance

2 : a test of one's ability, capacity, stamina, or suitability

3 : an undertaking or plan intended to resolve a problem of indebtedness especially in lieu of bankruptcy or foreclosure proceedings

B1 to exercise in order to improve the strength or appearance of your body: How works out in the gym two or three times a week. I try to work out twice a week. Make sure you drink plenty of water if you are working out.