say it: KRIS-uhn-duhm
christendom is a noun meaning "the collective body of Christians throughout the world and history (found predominantly in Europe and the Americas and Australia)". It is pronounced /ˈkɹɪsəndəm/ — KRIS-uhn-duhm. It carries one recorded sense.
the collective body of Christians throughout the world and history (found predominantly in Europe and the Americas and Australia)
“for a thousand years the Roman Catholic Church was the principal church of Christendom”
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 christendom 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.