Nouns

(n)orbit, celestial orbitthe (usually elliptical) path described by one celestial body in its revolution about another“he plotted the orbit of the moon”
(n)sphere, domain, area, orbit, field, arenaa particular environment or walk of life“his social sphere is limited”, “it was a closed area of employment”, “he's out of my orbit”
(n)scope, range, reach, orbit, compass, ambitan area in which something acts or operates or has power or control:“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)orbit, electron orbitthe path of an electron around the nucleus of an atom
(n)eye socket, orbit, cranial orbit, orbital cavitythe bony cavity in the skull containing the eyeball

Verbs

(v)orb, orbit, revolvemove in an orbit“The moon orbits around the Earth”, “The planets are orbiting the sun”, “electrons orbit the nucleus”