Orbit

n.	1.	(Astron.) The path described by a heavenly body in its periodical revolution around another body; as, the orbit of Jupiter, of the earth, of the moon.
	2.	An orb or ball. Roll the lucid orbit of an eye. - Young.
	3.	(Anat.) The cavity or socket of the skull in which the eye and its appendages are situated.
	4.	(Zool.) The skin which surrounds the eye of a bird.

Noun	1.	orbit - the (usually elliptical) path described by one celestial body in its revolution about another; "he plotted the orbit of the moon" Synonyms: celestial orbit
	2.	orbit - 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" Synonyms: arena, domain, sphere, area, field
	3.	orbit - 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" Synonyms: ambit, range, scope, reach, compass
	4.	orbit - the path of an electron around the nucleus of an atom Synonyms: electron orbit
	5.	orbit - the bony cavity in the skull containing the eyeball Synonyms: cranial orbit, eye socket, orbital cavity
Verb	1.	orbit - move in an orbit; "The moon orbits around the Earth"; "The planets are orbiting the sun"; "electrons orbit the nucleus" Synonyms: revolve

Orbit - A Scheme compiler. ["Orbit: An Optimising Compiler for Scheme", D.A. Kranz et al, SIGPLAN Notices 21(7):281-292 (Jul 1986)].

Earth insertion, LEM, LM, O, air lane, ambit, annular muscle, annulus, aphelion, apogee, area, arena, areola, astronomical longitude, attitude-control rocket, aureole, autumnal equinox, bailiwick, ball, ballistic capsule, balloon, beat, bladder, blob, boll, bolus, border, borderland, bubble, bulb, bulbil, bulblet, burn, capsule, celestial equator, celestial longitude, celestial meridian, chaplet, circle, circling, circuiteer, circuition, circuitousness, circuitry, circularity, circulate, circulation, circumambience, circumambiency, circumambulate, circumambulation, circumference, circumflexion, circumlocution, circummigrate, circummigration, circumnavigate, circumnavigation, circumvent, circus, close the circle, closed circle, colures, come full circle, compass, constituency, corona, coronet, crown, cycle, deep-space ship, demesne, department, describe a circle, deviance, deviancy, deviation, deviousness, diadem, digression, discipline, discus, disk, docking, docking maneuver, domain, dominion, ecliptic, ellipsoid, encircle, encompass, equator, equinoctial, equinoctial circle, equinoctial colure, equinox, eternal return, excursion, excursus, extension, extent, fairy ring, ferry rocket, field, flank, flight path, footing, fuel ship, full circle, galactic longitude, garland, geocentric longitude, geodetic longitude, geoid, girdle, girdle the globe, globe, globelet, globoid, globule, glomerulus, glory, go about, go around, go round, go the round, gob, gobbet, great circle, gyre, gyring, halo, heliocentric longitude, hemisphere, indirection, injection, insertion, itinerary, judicial circuit, jurisdiction, knob, knot, lasso, line, logical circle, longitude, loop, looplet, lunar excursion module, lunar module, magic circle, make a circuit, manned rocket, march, meandering, meridian, module, moon ship, multistage rocket, noose, oblate spheroid, orb, orbiting, orblet, pale, parking orbit, pellet, perigee, perihelion, period, precinct, primrose path, prolate spheroid, province, purview, radius, reach, realm, reentry, ring, road, rocket, rondelle, rondure, round, round trip, roundaboutness, roundel, rounding, rounds, route, run, saucer, scope, sea lane, shortcut, shuttle rocket, skirt, small circle, soft landing, solstitial colure, space capsule, space docking, space rocket, spacecraft, spaceship, sphere, sphere of influence, spheroid, spherule, sphincter, spiral, spiraling, stamping ground, subdiscipline, surround, sweep, territory, tour, track, trade route, traject, trajectory, trajet, turf, turn, turning, vantage, vernal equinox, vicious circle, walk, wheel, wheeling, wreath, zodiac, zone