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hour

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hour/ˈawɚ/noun
pluralhours
hour
/ˈawɚ/
noun
pluralhours
Learner's definition of HOUR  
[count]  : one of the 24 equal parts of a day : 60 minutes
— see also half hour, quarter hour
[count] 
: the time shown on a clock or watch
   b  : a particular time during the day
◊ The wee/small/early hours are the very early hours of the morning.
[count]  : the time of a specified activity
   b  [count]  : a particular time or period of time
◊ The man/woman (etc.) of the hour is a person who is being honored or praised or who is enjoying success at a particular time.
Someone's or something's darkest hour is a time of great trouble or danger.
Someone's or something's finest hour is a time of great success, courage, or heroism.
   c  hours [plural]  : a time scheduled or used for a particular purpose or activity
[count]  : the distance that can be traveled in an hour
hours [plural]  — used to refer to time when time is being measured on a 24-hour clock

after hours

or Britishout of hours
: after the regular hours of work or operation

an/per hour

— used in measurements that describe the speed of something
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