The idiom "keep an eye on" means to watch or monitor something or someone closely. It is used when you want to make sure that something is being done correctly or to prevent any potential problems or issues.
For example, if you are a parent, you might tell your child to "keep an eye on" their younger sibling while you are out running errands. This means that you want them to watch their sibling closely and make sure that they are safe and not getting into any trouble.
Similarly, if you are a manager at work, you might tell your team to "keep an eye on" a project to make sure that it is progressing as planned and that any issues are addressed quickly.
In general, "keep an eye on" is a useful idiom to use when you want to emphasize the importance of paying attention and being vigilant.
• It's been a challenge to keep an eye on my spending and stick to my budget.
• Please keep an eye on the cookies in the oven so they don't burn.
• Can you keep an eye on my bag while I go to the restroom?
• The detective had to keep an eye on the suspect's movements in order to catch him in the act.
• We need to keep an eye on the stock prices if we're going to invest wisely.
• The detective was asked to keep an eye on the suspect's movements and report back to headquarters.
• Please keep an eye on my bag while I go to the restroom.
• I need you to keep an eye on the budget and let me know if we need to make any adjustments.
• It's important to keep an eye on your health by exercising regularly and eating well.
• Can you keep an eye on the kids for a few minutes while I step out to make a call?
• The security guard was told to keep an eye on any suspicious activity.
• As a lifeguard, it's important to keep a constant eye on the swimmers in the pool.