Energy
Definition 1 of 3
Pro Tip 1/3
Physical Exertion
Used to describe someone's stamina or strength during physical activities. After the marathon, he had no energy left.
Pro Tip 2/3
Activity Level
Reference to how active or lively a person or environment feels. The festival was full of energy.
Pro Tip 3/3
Mental Sharpness
Talks about the ability to think or concentrate, not just physical activity. I need more energy to focus on this exam.