Definitionen
1.NounThe 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.
2.NounThe office of one who is principal or preeminent (such as a prince); the quality or status of being principal; preeminence.
3.NounA state ruled by a prince; a principality.
4.AdjectivePrimary; principal.