The office of one who is principal or preeminent (such as a prince); the quality or status of being principal; preeminence.
The early period of the Roman Empire, during which some characteristics of the government of the Roman Republic were retained; the reign of any particular emperor during said period.
A state ruled by a prince; a principality.
Primary; principal.
Of a ruler: supreme authority over all things.
An independent or sovereign territory.
Of a polity: the state of making laws and controlling resources without the coercion of other nations.
Of a person: the liberty to decide one's thoughts and actions.
Excellence, mastery, preeminent efficacy.