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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

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.

See Examples For:

In August 1680 the Puebloans of present-day New Mexico rose up against Spanish efforts to replace their religion with Catholicism.

From The Wall Street Journal ● Sep. 18, 2026

It recognises Protestantism and Catholicism as official religions, but practising organisations must register with the government -- something many Christians feel yields an unacceptable amount of control over church affairs and teachings.

From Barron's ● Aug. 25, 2026

At the same time, Vice President JD Vance has been laying the groundwork for his own run by releasing “Communion,” a book focused on his religious faith and conversion to Catholicism.

From Salon ● Aug. 9, 2026

The personal struggle and public fight against Lineage has rekindled her Catholicism, the 52-year-old said.

From Los Angeles Times ● Aug. 8, 2026

He said that Catholicism must translate God’s Word into the many languages and cultures of the world.

From "Hunger of Memory" by Richard Rodriguez

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