Idiom: keep a close watch on/over someone/something
Note: You can also say "keep a watch" or "keep watch"
— Could you please water my plants and keep a close watch on my house while I am away?
— Something is strange and I don't know what it is but I’m going to keep a close watch over my 13-year-old from now on.
— Keep a close watch over the sauce and to make sure it simmers and doesn't boil.
— We're keeping a close watch on the stock market for any opportunities.
— You could tell the security guards at the airport were keeping a close watch out for someone.
— My doctor found a suspicious mole on my back but for now he's just going to keep a close watch over it.
— Can you please keep a close watch out for the director? I need to get her to sign this agreement as soon as she's back in the office.
— Our driver will keep a close watch out for your arrival. What time does your train arrive and what are you wearing?
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