from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Reigning; ruling: a queen regnant.
  • adj. Predominant.
  • adj. Widespread; prevalent.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Exercising regal authority; reigning.
  • adj. Having the chief power; ruling; predominant; prevalent.

from The Century Dictionary and Cyclopedia

  • Reigning; exercising regal authority by hereditary right.
  • Ruling; predominant; prevalent; having the chief power.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. exercising power or authority


Probably from Middle English, a sovereign, from Old French, from Latin rēgnāns, rēgnant-, present participle of rēgnāre, to reign, from rēgnum, reign; see reign.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Middle French regnant and its source, the present participle of Latin regnāre. (Wiktionary)


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