ETYM Old Eng. regne, Old Fren. reigne, regne, French rčgne, from Latin regnum, from rex, regis, a king, from regere to guide, rule. Related to Regal, Regimen.
(Homonym: rain, rein).
1. A period during which something or somebody is dominant or powerful.
2. Royal authority; the dominion of a monarch; SYN. sovereignty.
3. The period during which a monarch is sovereign.