Meaning of sector | Babel Free

Definitions

1. A section. (Can we add an example for this sense?)
2. In the schedule for an aircraft and its crew, the period starting with preparation of the plane before loading at one airport and ending with deplaning at the next
3. A zone; a designated area. An area designated by boundaries within which a unit operates, and for which it is responsible. One of the subdivisions of a coastal frontier. a fictional region of space designated for navigational or governance purposes. A community or subculture within the wider intermicronational community
4. An area designated by boundaries within which a unit operates, and for which it is responsible
5. One of the subdivisions of a coastal frontier

Translations

CEFR level