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to keep an eye on sb/sth
01
to closely watch a person or thing, particularly in order to make sure they are safe
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What is the origin of the idiom "keep an eye on someone or something" and when to use it?
The expression "keep an eye on someone or something" is an idiomatic phrase that has its origins rooted in the idea of vigilant observation and have been used in English for many years. It is commonly employed to highlight the need for awareness or surveillance, especially when there is a concern for safety, security, or supervision.
Example
When making large purchases, it's crucial to keep an eye on your balance to avoid overdrawing your account.
The teacher reminded the students to keep an eye on the clock so they would finish the exam on time.
A panda car was parked on the corner, keeping an eye on the busy street.
The security guard was instructed to keep an eye on the surveillance cameras to ensure the safety of the premises.
Hospitals use closed-circuit television to keep an eye on critical areas and ensure patient safety.
