Definition of holy day of obligation in English:

holy day of obligation

Syllabification: holy day of obligation

noun

  • (In the Roman Catholic Church) a day on which Roman Catholics are required to attend Mass.
    More example sentences
    • It's the third Thursday in May, Ascension Thursday, a holy day of obligation in the Catholic Church.
    • They attended Mass every Sunday and on holy days of obligation.
    • This Thursday, August 15, is a holy day of obligation.

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Word of the day coloratura
Pronunciation: ˌkɒlərəˈtjʊərə
noun
elaborate ornamentation of a vocal melody