inform on
US /ɪnˈfɔːrm ɑːn/
UK /ɪnˈfɔːrm ɑːn/

1.
يبلغ عن, يخبر عن
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.
قرر أن يبلغ عن شركائه للحصول على حكم أخف.
•
Are you going to inform on your friend for cheating?
هل ستبلغ عن صديقك بسبب الغش؟