say it: KAH-muhn-welth
commonwealth is a noun meaning "the official name of some states in the United States (Massachusetts and Pennsylvania and Virginia and Kentucky) and associated territories (Puerto Rico)". It is pronounced /ˈkɑmənˌwɛlθ/ — KAH-muhn-welth. It carries 4 recorded senses.
the official name of some states in the United States (Massachusetts and Pennsylvania and Virginia and Kentucky) and associated territories (Puerto Rico)
a world organization of autonomous states that are united in allegiance to a central power but are not subordinate to it or to one another
a political system in which the supreme power lies in a body of citizens who can elect people to represent them
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 commonwealth 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.