1. [verb] (literally) To survey, look at something in a wide angle.
2. [verb] (figuratively) To supervise, guide, review or direct the actions of a person or group.
3. [verb] To inspect, examine
4. [verb] (obsolete) To fail to see; to overlook, ignore.
5. [verb] To observe secretly or unintentionally.
6. [verb] Watch and direct; 'Who is overseeing this project?'.