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Synonyms

Catholicism

American  
[kuh-thol-uh-siz-uhm] / kəˈθɒl əˌsɪz əm /

noun

  1. the faith, system, and practice of the Catholic Church, especially the Roman Catholic Church.

  2. (lowercase) catholicity.


Catholicism British  
/ kəˈθɒlɪˌsɪzəm /

noun

  1. short for Roman Catholicism

  2. the beliefs, practices, etc, of any Catholic Church

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Catholicism Cultural  
  1. The beliefs and practices of the Roman Catholic Church.


Other Word Forms

Derived Forms

Etymology

Origin of Catholicism

First recorded in 1600–10; Catholic + -ism

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Catholicism has played a central role in Spanish life for centuries, but traditional religious observance has declined for decades in line with a trend across Europe.

From Barron's • Jun. 7, 2026

In diagnosing the problem, the wing of Latin Catholicism that both Francis and Leo represent saw the church’s historical links with elite power structures and oligarchical families as a key vulnerability.

From The Wall Street Journal • Apr. 20, 2026

And it’s not just the figure at the top that changes the dynamics: Catholicism is hot right now, at least in media coverage.

From Slate • Apr. 15, 2026

JD Vance converted to Catholicism in 2019, during a time when he was being heavily bankrolled by esoteric Catholic billionaire Peter Thiel.

From Salon • Apr. 15, 2026

The expression suggests the parochialism of the Catholicism in which I was raised.

From "Hunger of Memory" by Richard Rodriguez

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