on the watch

on the watch (for someone or something)

alert and watching for someone or something. Please stay on the watch for trouble. I'm always on the watch for Ann. I want to know when she's around.

Name	Pronounced	Usage
Domingos	-	Portuguese
Parnel	-	English (Archaic)
Jeffrey	['dʒefri:]
Rossa	ROS-sah	Italian
Swaran	-	Punjabi
Odran	-	Irish