Main entry: compass, scope, orbit, range, reach, ambit
Definition: an area in which something acts or operates or has power or control: "the range of a supersonic jet"
Usage: a piano has a greater range than the human voice; the ambit of municipal legislation; within the compass of this article; within the scope of an investigation; outside the reach of the law; in the political orbit of a world power
Main entry: eye socket, cranial orbit, orbit, orbital cavity
Definition: the bony cavity in the skull containing the eyeball
Main entry: orbit, celestial orbit
Definition: the (usually elliptical) path described by one celestial body in its revolution about another
Usage: he plotted the orbit of the moon
Main entry: orbit, electron orbit
Definition: the path of an electron around the nucleus of an atom
Main entry: orbit, field, area, arena, sphere, domain
Definition: a particular environment or walk of life
Usage: his social sphere is limited; it was a closed area of employment; he's out of my orbit
Main entry: revolve, orb, orbit
Definition: move in an orbit
Usage: The moon orbits around the Earth; The planets are orbiting the sun; electrons orbit the nucleus