orbit

(noun) the (usually elliptical) path described by one celestial body in its revolution about another. Synonyms: celestial orbit. Examples: "He plotted the orbit of the moon."

(noun) a particular environment or walk of life. Synonyms: sphere, domain, area, field, arena. Examples: "His social sphere is limited." "It was a closed area of employment." "He's out of my orbit."

(noun) an area in which something acts or operates or has power or control: "the range of a supersonic jet". Synonyms: scope, range, reach, compass, ambit. Examples: "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."

(noun) the path of an electron around the nucleus of an atom. Synonyms: electron orbit.

(noun) the bony cavity in the skull containing the eyeball. Synonyms: eye socket, cranial orbit, orbital cavity.

(verb) move in an orbit. Synonyms: orb, revolve. Examples: "The moon orbits around the earth." "The planets are orbiting the sun." "Electrons orbit the nucleus."