1. (noun)commonwealth the officialname of some states in the United States (Massachusetts and Pennsylvania and Virginia and Kentucky) and associated territories (Puerto Rico)
2. (noun)state, nation, country, land, commonwealth, res publica, body politic a politically organized body of people under a singlegovernment "the state has elected a new president"; "African nations"; "students who had come to the nation's capitol"; "the country's largest manufacturer"; "an industrialized land"
4. (noun)democracy, republic, commonwealth a political system in which the supreme power lies in a body of citizens who can electpeople to represent them