Theol. the time of God's final judgment of all people; end of the world; doomsday
- In Judeo-Christian and Muslim traditions, the day at the end of the world when God judges the moral worth of individual humans or the whole human race. Also called Day of Judgment.
- judgment day A day of reckoning or final judgment.
- Alternative spelling of judgement day; the day when everything is to be judged.