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English definition of “rush hour”

rush hour

noun [C, U]
 
 
B2 the time when a lot of people are travelling to or from work and so roads and trains are very busy: the morning/evening rush hour I hate driving during the rush hour.Busy and activeHurrying and doing things quicklyDays and times of dayTraffic jams
(Definition of rush hour from the Cambridge Learners Dictionary © Cambridge University Press)
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