say it: SKIZ-uhm
schism is a noun meaning "division of a group into opposing factions". It carries 2 recorded senses.
the formal separation of a church into two churches or the withdrawal of one group over doctrinal differences
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 schism 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.