in Philosophy, a mistake of the judgment. The causes of error are reduced by Locke into these four: want of proofs; want of ability to use them; want of will to use them; and wrong measures of probability.

Astronomy, the amount of difference between the positions of any of the celestial bodies as determined by calculation and by observation.

Error, Writ of, in Law, a writ founded on an alleged error in judgment, which carries the suit to another tribunal for redress.