exert
Meaning 1:
When you exert yourself, it means you use a lot of energy and effort to do something. For example, when you run really fast, you exert yourself because you are using a lot of energy to move your body quickly.
Other Words
When you exert yourself, it means you use a lot of energy and effort to do something. For example, when you run really fast, you exert yourself because you are using a lot of energy to move your body quickly.