Difference between to act and to use in Korean

행동하다·사용하다

to act

행동하다to act

행동하다 means “to act” or “to behave.” You use it when talking about what a person does in a situation, especially if they act in a good, bad, calm, or polite way. It is often used with words like “kindly,” “politely,” or “safely.”

How to say to act
to use

사용하다to use

"To use" means to take something and use it for a purpose. In Korean, 사용하다 is used when you talk about using things like a phone, money, a card, or an app. It is a very common action word for everyday life.

How to say to use

The difference

행동하다 means to take action or behave in a certain way. 사용하다 means to use something for a purpose, like using money or an app.