holy day of obligation

1. A day when Catholics must attend Mass and refrain from servile work, and Episcopalians must take Communion (synset 115209842)
   is a type of: christian holy day - a religious holiday for Christians
   subtypes:

   • january 1, solemnity of mary - (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, assumption of mary, august 15 - 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, christmas day, dec 25, xmas - a Christian holiday celebrating the birth of Christ; a quarter day in England, Wales, and Ireland

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