- a Latin hymn on the Day of Judgment, commonly sung in a Requiem Mass.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- Christianity a famous Latin hymn of the 13th century, describing the Last Judgment. It is used in the Mass for the dead
- a musical setting of this hymn, usually part of a setting of the Requiem
literally: day of wrath
Word Origin and History for dies irae
Online Etymology Dictionary, © 2010 Douglas Harper