keep an eye on
idiomPart ofkeep
keep an eye on — idiom
1. to watch someone or something carefully, especially to make sure they are safe o
1.idiom
Definition
to watch someone or something carefully, especially to make sure they are safe or to prevent problems
Example
Could you keep an eye on the baby while I go and answer the door?
The security guard keeps an eye on the car park cameras throughout the night.