noun / verb
exercise
EK-sur-syze/ˈeksərsaɪz/
The active use or practice of an ability or power.
The man exercises his muscles by performing a controlled dumbbell curl.

Etymology
Latin exercitium already meant training or physical exercise, including that of soldiers and horsemen. The English fitness sense continues this idea of bodily activity undertaken for training.
In context
Regular physical activity is a powerful sleep aid, but timing is crucial. Morning or early afternoon exercise. Aim to get your workouts in earlier in the day.
More examples
- The exercise of authority requires good judgment.
- The nurse exercises discretion when sharing patient information.
- This puzzle lets children exercise their reasoning skills.
Forms
exercise · exercises · exercised · exercising