keep (your)/an eye on (something/someone)

to watch or look after something or someone.

Could you keep an eye on the baby for me a while?

I kept my eye on him all the time as I felt sure he was about to do something stupid.

• in spades
• in spite of
• in spite of something
• in spitting distance
• in stead
• in step with
• in step with someone
• in step with something
• in stitches
• in stockinged feet
• in stocking feet
• in store
• in store for
• be in a tizz
• be in a tizzy
• be in a transport of delight
• be in a transport of joy
• be in bad books
• be in bad odour with
• be in bad odour with someone
• be in bed with
• be in bed with someone
• be in blood
• be in business
• be in cahoots