Advertisement - Continue reading below

Definition of "orb" []

  • A sphere or spherical object. (noun)
  • A celestial body, such as the sun or moon. (noun)
  • Archaic The earth. (noun)
  • One of a series of concentric transparent spheres thought by ancient and medieval astronomers to revolve about the earth and carry the celestial bodies. (noun)
  • A globe surmounted by a cross, used as a symbol of monarchial power and justice. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "orb" in a sentence
  • "In my cube the protector of the orb is a friendly little creature named Mr. Monster."
  • "The mystery of the orb is the one interesting thing here and when we find out what it is, it's rather anti-climactic."
  • "CLIVE THOMPSON: Well, the orb is the invention of a guy named David Rose."