hour Meaning in the Cambridge Learner’s Dictionary
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Meaning of “hour” - Learner’s Dictionary

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 hour Days and times of day
(Definition of hour from the Cambridge Learner’s Dictionary © Cambridge University Press)
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