say it: PAY-tree-ahr-kee
patriarchy is a noun meaning "a form of social organization in which a male is the family head and title is traced through the male line". It carries one recorded sense.
a form of social organization in which a male is the family head and title is traced through the male line
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 patriarchy 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.