D defs.my
Entry 3 senses Webster, 1913

Empire

/ĕmʹpīr'/ · Em·pire · IPA /ˈɛmˌpaɪ̯ɹ/
01 n. Supreme power; sovereignty; sway; dominion.
  1. 1.
    Supreme power; sovereignty; sway; dominion.
    “Over hell extend His empire, and with iron scepter rule.” Milton.
  2. 2.
    The dominion of an emperor; the territory or countries under the jurisdiction and dominion of an emperor (rarely of a king), usually of greater extent than a kingdom, always comprising a variety in the nationality of, or the forms of administration in, constituent and subordinate portions; as, the Austrian empire.
    Empire carries with it the idea of a vast and complicated government.” — C. J. Smith.
  3. 3.
    Any dominion; supreme control; governing influence; rule; sway; as, the empire of mind or of reason.
    “Another force which, in the Middle Ages, shared with chivalry the empire over the minds of men.” — A. W. Ward.
Phrases & compounds
Celestial empire — See under Celestial.
Empire City — a common designation of the city of New York.
Empire State — a common designation of the State of New York.