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English definition of “rule”

rule

verb [I, T]     /ruːl/
DECIDE to make an official legal decision: [+ (that)] The judge ruled that it was wrong for a 16-year-old girl to be held in an adult prison.Court cases, orders and decisionsLegislation and law-making
CONTROL B2 to be in control of somewhere, usually a country: [often passive] They were ruled for many years by a dictator. the ruling party → See also rule the roostRuling and governing
(Definition of rule verb from the Cambridge Learner's Dictionary © Cambridge University Press)

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