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hour

American  
[ouuhr, ou-er] / aʊər, ˈaʊ ər /

noun

  1. a period of time equal to one twenty-fourth of a mean solar or civil day and equivalent to 60 minutes.

    He slept for an hour.

  2. any specific one of 24 periods of 60 minutes, usually reckoned in two series of 12, one series from midnight to noon and the second from noon to midnight, but sometimes reckoned in one series of 24, from midnight to midnight.

    He slept for the hour between 2 and 3 a.m. The hour for the bombardment was between 1300 and 1400.

  3. any specific time of day; the time indicated by a timepiece.

    What is the hour?

  4. a short or limited period of time.

    He savored his hour of glory.

  5. a particular or appointed time.

    What was the hour of death? At what hour do you open?

  6. a customary or usual time.

    When is your dinner hour?

  7. the present time.

    The magazine had an interview with the man of the hour, star of the hottest new superhero movie.

  8. hours,

    1. time spent in an office, factory, or the like, or for work, study, etc..

      The doctor's hours were from 10 to 4. What employees do after hours is their own business.

    2. customary time of going to bed and getting up.

      Actors often keep late hours.

    3. (in the Christian church) the seven stated times of the day for prayer and devotion.

    4. the offices or services prescribed for the seven stated times of the day for prayer and devotion.

    5. a book containing the seven stated times of the day for prayer and devotion.

  9. distance normally covered in an hour's traveling.

    We live about an hour from the city.

  10. Astronomy.  a unit of measure of right ascension representing 15°, or the twenty-fourth part of a great circle.

  11. a single period, as of class instruction or therapeutic consultation, usually lasting from 40 to 55 minutes.

  12. Also called credit hourEducation.  one unit of academic credit, usually representing attendance at one scheduled period of instruction per week throughout a semester, quarter, or term.

  13. Classical Mythology.  the Hours, the Horae.


adjective

  1. of, relating to, or noting an hour.

idioms

  1. one's hour,

    1. Also one's last hour. the instant of death.

      The sick man knew that his hour had come.

    2. any crucial moment.

hour British  
/ aʊə /

noun

  1. a period of time equal to 3600 seconds; 1/ 24 th of a calendar day

  2. any of the points on the face of a timepiece that indicate intervals of 60 minutes

  3. an exact number of complete hours

    the bus leaves on the hour

  4. the time of day as indicated by a watch, clock, etc

  5. the period of time allowed for or used for something

    the lunch hour

    the hour of prayer

  6. a special moment or period

    our finest hour

  7. the present time

    the man of the hour

  8. the distance covered in an hour

    we live an hour from the city

  9. astronomy an angular measurement of right ascension equal to 15° or a 24th part of the celestial equator

    1. a time of success, fame, etc

    2. Also: one's last hour.  the time of one's death

      his hour had come

  10. informal  to do something in a leisurely manner

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

hour Scientific  
/ our /
  1. A unit of time equal to one of the 24 equal parts of a day; 60 minutes.

  2. ◆ A sidereal hour is 1/24 of a sidereal day, and a mean solar hour is 1/24 of a mean solar day.

  3. See more at sidereal time solar time

  4. A unit of measure of longitude or right ascension, equal to 15° or 1/24 of a great circle.


hour More Idioms  

Other Word Forms

  • hourless adjective

Etymology

Origin of hour

First recorded in 1175–1225; Middle English (h)oure from Anglo-French; Old French (h)ore, from Latin hōra, from Greek hṓrā “time, season”

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

DCWP’s investigation, which began in 2022, found that Starbucks had unlawfully reduced employees’ hours, denied them the opportunity to pick up additional shifts, and failed to give its employees regular schedules.

From The Wall Street Journal

But I didn’t have a job to go to, and after wallowing in my own sweat for what seemed like hours, I pulled Paul’s crumbled comedy class ticket out of my jacket pocket.

From Salon

Chelsea were down to 10 men for an hour on Sunday so I was a little bit surprised Arsenal did not go for it more.

From BBC

The motorway was closed in both directions for nearly 10 hours for investigation work to be carried out.

From BBC

The company has about 650,000 members in the UK who rent cars by the hour or day from an app and collect the vehicles from parking spaces.

From BBC