Quick definitions from WordNet (orbit)
▸ noun: the (usually elliptical) path described by one celestial body in its revolution about another ("He plotted the orbit of the moon")
▸ noun: the path of an electron around the nucleus of an atom
▸ noun: the bony cavity in the skull containing the eyeball
▸ noun: an area in which something acts or operates or has power or control ("In the political orbit of a world power")
▸ noun: a particular environment or walk of life ("He's out of my orbit")
▸ verb: move in an orbit ("The moon orbits around the Earth")
▸ Also see orbit
▸ noun: the (usually elliptical) path described by one celestial body in its revolution about another ("He plotted the orbit of the moon")
▸ noun: the path of an electron around the nucleus of an atom
▸ noun: the bony cavity in the skull containing the eyeball
▸ noun: an area in which something acts or operates or has power or control ("In the political orbit of a world power")
▸ noun: a particular environment or walk of life ("He's out of my orbit")
▸ verb: move in an orbit ("The moon orbits around the Earth")
▸ Also see orbit