1. Exercise of sovereign power, as by a monarch.
2. The period during which a monarch rules.
3. Dominance or widespread influence: the reign of reason.
intr.v. reigned, reign·ing, reigns
1. To exercise sovereign power.
2. To hold the title of monarch, but with limited authority.
3. To be predominant or prevalent: Panic reigned as the fire spread.
[Middle English reigne, from Old French, from Latin rēgnum, from rēx, rēg-, king; see reg- in the Appendix of Indo-European roots.]
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