tip off
中上級 (B2) informal
To secretly tell someone useful information they wouldn't otherwise know.
"An anonymous caller tipped off the police about the planned robbery."
文脈の中で聞く
The Apple Vision Pro Can't Get Live Events Right | Sharp Tech with Ben Thompson
Sharp Tech Podcast · 1:25
Front Row in Apple Immersive, tip off
The Millionaire Fastlane by MJ DeMarco - FULL AUDIOBOOK
MOVE DIFFERENT MEDIA · 274:50
you so how could you tell a good seminar from a bad one the first tip off is