say it: PRAH-tuh-stuhn-tiz-uhm
protestantism is a noun meaning "the theological system of any of the churches of western Christendom that separated from the Roman Catholic Church during the Reformation". It carries one recorded sense.
the theological system of any of the churches of western Christendom that separated from the Roman Catholic Church during the Reformation
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for protestantism come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.