- A fixed point or period of time for a particular activity, occasion, etc.The dinner hour.
- An indefinite period of time of a specified kind.His finest hour.
- A period fixed for work, receiving patients, etc.Office hours from 2 to 5.
- The usual times for getting up or going to bed.To keep late hours.
Two hours from New York to Philadelphia by rail.
An example of an hour is the time that passes between 4 and 5 o'clock.
An example of an hour is the dinner hour.
- A longer than usual or customary period of time for a given activity:Worked long hours to finish the project on time.
- after the regular hours for business, school, etc.
- every hour or for many successive hours
- each hour
- most prominent at this time
- the time of one's death
- at the beginning of any or each of the twenty-four divisions of the day; at noon, 1:00, 2:00, etc.News is broadcast every hour on the hour.
Idioms and Phrasal Verbs
Origin of hour
- Middle English from Old French houre from Latin hōra from Greek hōrā season, time yēr- in Indo-European roots
From American Heritage Dictionary of the English Language, 5th Edition
- Middle English houre, oure, from Anglo-Norman houre, from Old French houre, (h)ore, from Latin hōra (“hour”), from Ancient Greek ὥρα (hōrā, “any time or period, whether of the year, month, or day”), from Proto-Indo-European *yer-, *yor- (“year, season”). Akin to Old English ġēar (“year”). Displaced native Middle English stunde, stound (“hour, moment, stound”) (from Old English stund (“hour, time, moment”)), Middle English ȝetid, tid (“hour, time”) (from Old English *ġetīd, compare Old Saxon getīd (“hour, time”).