Related to word: tell
Phrasal Verb
to negatively impact someone's health or behavior
Chronic stress can tell on your health negatively.
His exhaustion all day finally started to tell on his performance.
An unhealthy diet can tell on a child's development negatively.
to report someone's misconduct, particularly to someone who holds authority, often regarding something negative they have said or done
Xiaoming told the teacher that his classmate was cheating in class.
If you don't want to be punished, don't tell on your misconduct to the supervisor.
She decided not to tell on her friend because she didn't want to jeopardize their friendship.