Verb: keep an eye on
- See and monitor someone or something
"Keep an eye on the baby, please!";
- watch, observe, follow, watch over
Derived forms: keeping an eye on, kept an eye on, keeps an eye on
Type of: check, check into, check out, check over, check up on, go over, look into, sus [Brit, informal], suss [Brit, informal], suss out [Brit, informal]