tip-off
tip-off
/ˈtɪp ɒf/
1 countable (especially British English) (North American English usually tip) secret information that somebody gives, for example to the police, to warn them about an illegal activity that is going to happen or has happened
The man was arrested after an anonymous tip-off.informal
Customs officers had received a tip-off about a shipment of cocaine.
He was arrested after a tip-off to police.
2 countable, uncountable (in basketball) the start of a game of basketball, when the ball is thrown up in the air between two opponents The Lions quickly gained possession of the ball at tip-off.