diocese

noun

di·​o·​cese ˈdī-ə-səs 

-ˌsēs,

-ˌsēz

plural dioceses ˈdī-ə-sə-səz 

-ˌsē-zəz,

 nonstandard  ˈdī-ə-ˌsēz

: the territorial jurisdiction of a bishop

diocesan

dī-ˈä-sə-sən 

 also  ˈdī-ə-ˌsē-sᵊn

adjective

Examples of diocese in a Sentence

Recent Examples on the Web

And with that, a one-time refugee officially became San Diego County’s newest bishop and the first Vietnamese American to lead a diocese in the United States. —Blake Nelson, Mercury News, 18 July 2025

The dispensation by the diocese of San Bernardino, California, is in response to the Trump administration's mass deportation operations. —Louis Casiano, FOXNews.com, 9 July 2025

This means the schools are funded and governed independently from the diocese, which runs high schools of its own, such as Aurora Central Catholic. —Molly Morrow, Chicago Tribune, 7 July 2025

Leo’s old diocese of Chiclayo, Peru, meanwhile, is waiting for their bishop to come home, and then there’s Argentina, which never got a papal visit from the first-ever Argentine pope. —Nicole Winfield, Los Angeles Times, 5 July 2025

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

Rhymes for diocese

• abcs
• absentees
• addressees
• adoptees
• allottees
• amputees
• antifreeze
• appellees
• appointees
• arrestees
• artistes
• assamese

Kids Definition

diocese

noun

di·​o·​cese ˈdī-ə-səs 

-ˌsēz,

-ˌsēs

plural dioceses ˈdī-ə-ˌsēz 

-ˌsē-zēz,

-sə-səz

: the district over which a bishop has authority