0 to exercise in order to improve the strength or appearance of your body: --
1 to be the result of a calculation: --
2 to happen or develop in a particular way: --
3 (of a situation) to happen or develop in a particular, esp. a satisfactory, way, or (of a person) to be suitable for a particular situation: --
4 to exercise in order to improve health, strength, or physical appearance, or to improve your skill in a sport: --
I work out on my stationary bike.
5 to be successful or develop in a particular way: --