
Tip off
Secrecy Importance
 Using 'tip off' implies sharing information secretly, often to prevent something from happening. 
The gang was tipped off about the raid and fled.
 Insider Knowledge
 'Tip off' usually means the information comes from a source with special access or knowledge. 
The employee tipped off the journalist about the scandal.
 Urgency Suggested
 The phrase often suggests that immediate action is needed following the information given. 
They were tipped off to evacuate before the storm hit.