admonition
Definition
A strong warning, often in words or speech, to change one's behavior, correct an action, or show something in a particular way, especially something that a person says to someone else to help them reform their behavior or become a better person.
한국어 행동을 바꾸거나 잘못을 바로잡도록 주는 강한 경고.
Example
"He gave his son a stern admonition to work harder and earn good grades."