diocese

noun

di·​o·​cese ˈdī-ə-səs How to pronounce diocese (audio)
-ˌsēs,
-ˌsēz
plural dioceses ˈdī-ə-sə-səz How to pronounce diocese (audio)
-ˌsē-zəz,
 nonstandard  ˈdī-ə-ˌsēz
: the territorial jurisdiction of a bishop
diocesan
dī-ˈä-sə-sən How to pronounce diocese (audio)
 also  ˈdī-ə-ˌsē-sᵊn
adjective

Examples of diocese in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The diocese, led by Prevost, forwarded information about the case to the Vatican office overseeing such complaints. Peter Smith, Los Angeles Times, 11 May 2025 In 2022, the women filed civil complaints accusing the diocese of ignoring their allegations, CNN reported. Kc Baker, People.com, 9 May 2025 Before his election, Leo headed the Vatican Dicastery for Bishops, which advises the pope on appointments of bishops, who lead the world’s Catholic dioceses. Dan Mangan, CNBC, 8 May 2025 The first American pope formally took possession of the St. John Lateran Basilica, which is Rome’s cathedral and seat of the diocese, with an evening Mass attended by Roman priests and faithful. Nicole Winfield, Chicago Tribune, 25 May 2025 See All Example Sentences for diocese

Word History

Etymology

Middle English diocise, dyoces, borrowed from Anglo-French diocise, dyocés, borrowed from Late Latin diocēsis, dioecēsis "administrative district, province, group of provinces (in the later Roman Empire), jurisdiction of a bishop" (Latin, "administrative district"), borrowed from Late Greek dioíkēsis "administration, control, ordering, civil or ecclesiastical group of provinces, jurisdiction of a bishop," going back to Greek, "management, administration," from dioikē-, variant stem of dioikéō, dioikeîn "to control, manage, look after" (from di- di- + oikeîn "to live, have one's home, order, govern," derivative of oîkos "house, home") + -sis -sis — more at vicinity

Note: In early Modern English diocise, passed on from Middle English, competed unsuccessfully with the Latin/French-influenced forms diocess and diocese. The variant diocess was predominant in the eighteenth century and is the only form entered in Samuel Johnson's dictionary (1755). The situation had changed, at least in the U.S., by the early nineteenth century: Noah Webster, in his American Dictionary of the English Language (1828), enters only diocese, and regards diocess as "a very erroneous orthography."

First Known Use

14th century, in the meaning defined above

Time Traveler
The first known use of diocese was in the 14th century

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Cite this Entry

“Diocese.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/diocese. Accessed 10 Jun. 2025.

Kids Definition

diocese

noun
di·​o·​cese ˈdī-ə-səs How to pronounce diocese (audio)
-ˌsēz,
-ˌsēs
plural dioceses ˈdī-ə-ˌsēz How to pronounce diocese (audio)
-ˌsē-zēz,
-sə-səz
: the district over which a bishop has authority

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