What does “keep an eye on” mean?

to take care of sb / sth and make sure that they are not harmed, damaged, etc.

How is “keep an eye on” used?

In Once Upon a Time in America (1984), one line is: “Somebody's gotta keep an eye on the place.”

The clip at the top of this page is from Once Upon a Time in America (1984).

Somebody's gotta keep an eye on the place.

8 作品で登場 · 1 本目