[ im-peer-ee-uhm ]
See synonyms for imperium on
noun,plural im·pe·ri·a [im-peer-ee-uh], /ɪmˈpɪər i ə/, im·pe·ri·ums.
  1. command; supreme power.

  2. area of dominion; sphere of control or monopoly; empire.

  1. a nation having or exerting supreme power; superpower.

  2. Law. the right to command the force of the state in order to enforce the law.

Origin of imperium

1645–55; <Latin: supreme administrative power, authority, empire, equivalent to imper(āre) to rule (see imperative) + -ium-ium

Words Nearby imperium Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use imperium in a sentence

  • They were a band of aristocrats dwelling in a democracy, an imperium in imperio.

    American Sketches | Charles Whibley
  • You know, however, in this world that there is another world—orb within orb—an imperium in imperio—the Exclusives.

British Dictionary definitions for imperium


/ (ɪmˈpɪərɪəm) /

nounplural -ria (-rɪə)
  1. (in ancient Rome) the supreme power, held esp by consuls and emperors, to command and administer in military, judicial, and civil affairs

  2. the right to command; supreme power

  1. a less common word for empire

Origin of imperium

C17: from Latin: command, empire, from imperāre to command; see emperor

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012