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English definition of “hour”

hour

noun     /aʊər/
60 MINUTES [C] A1 a period of time equal to 60 minutes : half an hour The store is open 24 hours a day . It's a six-hour flight . The job pays $5 an hour.Specific periods of time
PERIOD OF TIME [C] the period of time when a particular activity happens or when a shop or public building is open : [usually plural] working hours Our opening hours are from 8 to 6. I've got to go to the bank UK in my lunch hour/ US on my lunch hour.Specific periods of time
hours informal B1 a long time : I spent hours doing my homework .Long periods of time
the hour the point when a new hour begins : The train leaves at two minutes past the hour. My watch beeps on the hour.Specific periods of timePoints in time
all hours very late at night , until early morning , or almost all the time : Our neighbours are up till all hours every night , playing loud music .Days and times of day
the early/small hours the hours between midnight and the time that the sun rises → See also rush hourDays and times of day
(Definition of hour noun from the Cambridge Learner's Dictionary © Cambridge University Press)

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