What is the meaning of orbit?

noun

• The (usually elliptical) path described by one celestial body in its revolution about another.
  • usage: "he plotted the orbit of the moon"
  • synonyms: celestial orbit
• A particular environment or walk of life.
  • usage: "his social sphere is limited"; "it was a closed area of employment"; "he's out of my orbit"
  • synonyms: sphere, domain, area, field, arena
• (n.) ()
  • synonyms: scope, range, reach, compass, ambit
• The path of an electron around the nucleus of an atom.
  • synonyms: electron orbit
• The bony cavity in the skull containing the eyeball.
  • synonyms: eye socket, cranial orbit, orbital cavity

verb

• Move in an orbit.
  • usage: "The moon orbits around the Earth"; "The planets are orbiting the sun"; "electrons orbit the nucleus"
  • synonyms: orb, revolve