[ 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 forms

hour·less, adjective

Can be confused

are hour our
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for hour

British Dictionary definitions for hour


/ (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

Science definitions for hour


[ 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 hour


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.