Noun
1. the (usually elliptical) path described by one celestial body in its revolution about another;
"he plotted the orbit of the moon"2. a particular environment or walk of life;
"his social sphere is limited""it was a closed area of employment""he's out of my orbit"3. an area in which something acts or operates or has power or control: "the range of a supersonic jet";
"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"4. the path of an electron around the nucleus of an atom
5. the bony cavity in the skull containing the eyeball