Noun | 1. | holy day of obligation - a day when Catholics must attend Mass and refrain from servile work, and Episcopalians must take Communion Christian holy day - a religious holiday for Christians Solemnity of Mary, January 1 - (Roman Catholic Church) a holy day of obligation Ascension, Ascension Day, Ascension of the Lord - (Christianity) celebration of the Ascension of Christ into heaven; observed on the 40th day after Easter Assumption of Mary, August 15, Assumption - celebration in the Roman Catholic Church of the Virgin Mary's being taken up into heaven when her earthly life ended; corresponds to the Dormition in the Eastern Orthodox Church All Saints' Day, Allhallows, Hallowmas, Hallowmass, November 1 - a Christian feast day honoring all the saints; first observed in 835 December 8, Immaculate Conception - Roman Catholic holy day first celebrated in 1854 Christmas Day, Dec 25, Xmas, Christmas - a Christian holiday celebrating the birth of Christ; a quarter day in England, Wales, and Ireland |