n.
Pronunciation: ' au ̇ (- ə )r
Function: noun
Etymology: Middle English, from Anglo-French ure, eure, from Late Latin & Latin; Late Latin hora canonical hour, from Latin, hour of the day, from Greek h ō ra ― more at YEAR
Date: 13th century
1 : a time or office for daily liturgical devotion especially : CANONICAL HOUR
2 : the 24th part of a day : 60 minutes
3 a : the time of day reckoned in two 12-hour periods b plural : the time reckoned in one 24-hour period from midnight to midnight using a 4-digit number of which the first two digits indicate the hour and the last two digits indicate the minute <in the military 4:30 p.m. is called 1630 hour s >
4 a : a customary or particular time <lunch hour > <in our hour of need> also : MOMENT 1B <hero of the hour > b plural : time of going to bed <keeps late hour s > also : time of working <banker's hour s >
5 : an angular unit of right ascension equal to 15 degrees measured along the celestial equator
6 : the work done or distance traveled at normal rate in an hour <the city was two hour s away>
7 a : a class session b : CREDIT HOUR , SEMESTER HOUR
– after hours : after the regular quitting or closing time