1. engaging in physical activity to improve health or fitness
Usage: present participle of exercise
2. using or applying a right, power, or ability
Usage: present participle of exercise
3. causing worry or concern to someone
Usage: present participle of exercise; formal

1. the act of engaging in physical activity
Usage: gerund form

Examples

• She is exercising at the gym every morning.
• The citizens are exercising their right to vote.
• He enjoys exercising outdoors when the weather is nice.
• The judge is exercising caution in this case.
• Regular exercising helps maintain good health.
• The problem has been exercising my mind all day.
• They are exercising their authority as parents.