tip-off

n. a clue; an indication. The tip-off was when the dog started wagging his tail. We knew you were hiding somewhere close.

Name	Pronounced	Usage
Shikha	-	Indian, Hindi
Karan	-	Indian, Hindi, Marathi, Gujarati, Punjabi
Idril	-	Literature
Alphaeus	al-FEE-əs (English)	Biblical, Biblical Latin
Terttu	TERT-too	Finnish
Rain (1)	RAYN	English (Rare)