orbit

nouns

the (usually elliptical) path described by one celestial body in its revolution about another
"he plotted the orbit of the moon"
celestial orbit, orbit
is derived from
orbital
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"
area, arena, domain, field, orbit, sphere
an area in which something acts or operates or has power or control: "the range of a supersonic jet"
"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"
ambit, compass, orbit, range, reach, scope
the path of an electron around the nucleus of an atom
electron orbit, orbit
is derived from
orbital
the bony cavity in the skull containing the eyeball
cranial orbit, eye socket, orbit, orbital cavity
is derived from
orbital

verbs

move in an orbit
"The moon orbits around the Earth"; "The planets are orbiting the sun"; "electrons orbit the nucleus"
orb, orbit, revolve
is derived from
orbiter