noun the (usually elliptical) path described by one celestial body in its revolution about another.
— synonyms: celestial_orbit
noun a particular environment or walk of life.
— synonyms: sphere, domain, area, field, arena
noun an area in which something acts or operates or has power or control: "the range of a supersonic jet".
— synonyms: scope, range, reach, compass, ambit
noun the path of an electron around the nucleus of an atom.
— synonyms: electron_orbit
noun the bony cavity in the skull containing the eyeball.
— synonyms: eye_socket, cranial_orbit, orbital_cavity