tip-off

A tip-off from a source who does not reveal their name.

A tip-off given to the authorities over the phone.

A tip-off based on gathered intelligence data.

Specifies the subject of the secret information.

Indicates that an action was taken as a result of a tip-off.

To obtain secret information from a source.

To be given secret information from a source.

To take action based on secret information received.

To provide secret information to someone, especially the police.