tip off

Found in Anh - Anh (Wordnet)

Definition Verb (transitive) : To give someone, especially an authority, confidential or advance information about something, typically about an illegal or secret activity. To warn or advise someone privately about something that is about to happen. Usage The verb "tip off" is used with an object (the person or group receiving the information) and is often followed by "about" to specify the sub...