a period during which something or somebody is dominant or powerful
"he was helpless under the reign of his egotism"
royal authority; the dominion of a monarch
"The queen's reign brought an era of peace and prosperity to the kingdom."
The exercise of sovereign power.
"The new queen's reign was marked by peace and prosperity across the kingdom."
In plain English: A reign is the period of time during which someone acts as king, queen, emperor, or empress and holds power over their country.
"The reign of terror in France lasted for several years before ending with Napoleon's rise to power."
Usage: Use the noun form only when referring specifically to the period during which a ruler holds office or exercises authority. Do not confuse this with "reign" used as an adjective in phrases like "the reign of terror," where it still denotes that specific era of rule rather than general dominance.
be larger in number, quantity, power, status or importance
"Money reigns supreme here"
"Hispanics predominate in this neighborhood"
To exercise sovereign power, to rule as a monarch.
"The queen will reign over the kingdom until her successor is crowned."
In plain English: To reign means to be in charge of ruling over something, usually as a king or queen.
"The king will reign over his kingdom for many years."
A male given name
"The baby was named Reign after his grandfather, who believed the strong name would bring him luck."
The word "reign" entered Middle English via Old French from Latin rēgnō, originally meaning to rule or govern. It eventually replaced the native Old English words for ruling, such as rīċe ("a reign") and ricsian.