n. an area in which something acts or operates or has power or control: "the range of a supersonic jet"; "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"

n. the bony cavity in the skull containing the eyeball

n. (rotation)

n. the path of an electron around the nucleus of an atom