Yom Kip·pur  Jewish Antiq. the only fast day of the Mosaic ritual, celebrated on the tenth day of the seventh month (Tishri), according to the rites described in Leviticus xvi. Also called Day of Atonement.
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 A·tone·ment n.
 1.  Reconciliation; restoration of friendly relations; agreement; concord. [Archaic]
    By whom we have now received the atonement.   --Rom. v. 11.
 He desires to make atonement
 Betwixt the Duke of Gloucester and your brothers.   --Shak.
 2. Satisfaction or reparation made by giving an equivalent for an injury, or by doing of suffering that which will be received in satisfaction for an offense or injury; expiation; amends; -- with for. Specifically, in theology: The expiation of sin made by the obedience, personal suffering, and death of Christ.
    When a man has been guilty of any vice, the best atonement be can make for it is, to warn others.   --Spectator.
    The Phocians behaved with, so much gallantry, that they were thought to have made a sufficient atonement for their former offense.   --Potter.
 Day of Atonement Jewish Antiq., the only fast day of the Mosaic ritual, celebrated on the tenth day of the seventh month (Tishri), according to the rites described in Leviticus xvi. Also called Yom Kippur.
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 Day of Atonement
      n : (Judaism) a solemn Jewish fast day; 10th of Tishri; its
          observance is one of the requirements of the Mosaic Law
          [syn: Yom Kippur]