[ ouuh r, ou-er ]
/ aʊər, ˈaʊ ər /



of, relating to, or noting an hour.


    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.

Origin of hour

1175–1225; Middle English (h)oure < Anglo-French; Old French (h)ore < Latin hōra < Greek hṓrā time, season
Related formshour·less, adjective
Can be confusedare hour our
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for hours

British Dictionary definitions for hours (1 of 3)


/ (aʊəz) /

pl n

a period regularly or customarily appointed for work, business, etc
one's times of rising and going to bed (esp in the phrases keep regular, irregular, or late hours)
an indefinite period of time
Also called (in the Roman Catholic Church): canonical hours
  1. the seven times of the day laid down for the recitation of the prayers of the divine office
  2. the prayers recited at these times
the small hours the hours just after midnight
till all hours until very late

British Dictionary definitions for hours (2 of 3)


/ (aʊəz) /

pl n

another word for the Horae

British Dictionary definitions for hours (3 of 3)


/ (aʊə) /


See also hours

Word Origin for hour

C13: from Old French hore, from Latin hōra, from Greek: season
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

Word Origin and History for hours



mid-13c., from Old French hore "one-twelfth of a day" (sunrise to sunset), from Latin hora "hour, time, season," from Greek hora "any limited time," from PIE *yor-a-, from root *yer- "year, season" (see year). Greek hora was "a season; 'the season;'" in classical times, sometimes, "a part of the day," such as morning, evening, noon, night. The Greek astronomers apparently borrowed the notion of dividing the day into twelve parts (mentioned in Herodotus) from the Babylonians (night continued to be divided into four watches), but as the amount of daylight changed throughout the year, the hours were not fixed or of equal length. Equinoctal hours did not become established in Europe until the 4c., and as late as 16c. distinction sometimes was made between temporary (unequal) hours and sidereal (equal) ones. The h- has persisted in this word despite not being pronounced since Roman times. Replaced Old English tid, literally "time," and stund "period of time." As a measure of distance ("the distance that can be covered in an hour") it is recorded from 1785.

Online Etymology Dictionary, © 2010 Douglas Harper

Science definitions for hours


[ our ]

A unit of time equal to one of the 24 equal parts of a day; 60 minutes.♦ A sidereal hour is 124 of a sidereal day, and a mean solar hour is 124 of a mean solar day. See more at sidereal time solar time.
A unit of measure of longitude or right ascension, equal to 15° or 124 of a great circle.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Idioms and Phrases with hours


see after hours; all hours; by the day (hour); eleventh hour; happy hour; keep late hours; on the hour; small hours.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.