keep a close eye on (someone or something)

keep a close eye on (someone or something)

To monitor someone or something closely. Keep a close eye on this pot so that the soup doesn't boil over.See also: close, eye, keep, on

keep a close ˈeye/ˈwatch on somebody/something

watch somebody/something carefully: Over the next few months we will keep a close eye on sales.See also: close, eye, keep, on, somebody, something, watch