hour

n. unit of time equal to 60 minutes; certain time of day

The hour (symbol: h, or occasionally hr; via Latin from Greek "season, time span", ultimately cognate to English ) is a unit of time. It is not an SI unit but is accepted for use with the SI.
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Noun
1. a period of time equal to 1/24th of a day; "the job will take more than an hour"
(synonym) hr, 60 minutes
(hypernym) time unit, unit of time
(hyponym) sidereal hour
(part-holonym) day, twenty-four hours, solar day, mean solar day
(part-meronym) half-hour, 30 minutes
2. clock time; "the hour is getting late"
(synonym) time of day
(hypernym) clock time, time
(hyponym) noon, twelve noon, high noon, midday, noonday, noontide
3. a special and memorable period; "it was their finest hour"
(hypernym) time period, period of time, period
4. distance measured by the time taken to cover it; "we live an hour from the airport"; "its just 10 minutes away"
(synonym) minute
(hypernym) distance

(n.)
The twenty-fourth part of a day; sixty minutes.
  

(n.)
The time of the day, as expressed in hours and minutes, and indicated by a timepiece; as, what is the hour? At what hour shall we meet?
  

(n.)
Fixed or appointed time; conjuncture; a particular time or occasion; as, the hour of greatest peril; the man for the hour.
  

(n.)
Certain prayers to be repeated at stated times of the day, as matins and vespers.
  

(n.)
A measure of distance traveled.
  

same as Ai; an hour; eye; fountain
  

hour, or time, of a prince