1. close and attentive monitoring or oversight to ensure quality, safety, or compliance with standards
The children were under careful supervision during the field trip.
As crianças estavam sob supervisão cuidadosa durante o passeio escolar.
2. diligent management or control of activities to prevent errors or misconduct
The project requires careful supervision to meet the deadline.
O projeto requer supervisão cuidadosa para cumprir o prazo.