inform on

US /ɪnˈfɔːrm ɑːn/
UK /ɪnˈfɔːrm ɑːn/
"inform on" picture
1.

melaporkan, memberi tahu

to give information to the police or other authority about someone's illegal or wrong activities

:
He decided to inform on his accomplices to get a lighter sentence.
Dia memutuskan untuk melaporkan kaki tangannya untuk mendapatkan hukuman yang lebih ringan.
Are you going to inform on your friend for cheating?
Apakah kamu akan melaporkan temanmu karena mencontek?