60 minutes; one of the 24 parts that a day is divided into. I spent an hour on the phone. It will take about an hour to get there. Half hour · Kilowatt-hour · Man-hour

60 minutes; one of the 24 parts that a day is divided into It will take about an hour to get there. The interview lasted half an hour. It was a three-hour exam.

There are 18 meanings listed in OED's entry for the noun hour. See 'Meaning & use' for definitions, usage, and quotation evidence.

the small hand on a clock or watch that points to the hour. Questions about grammar and vocabulary? Find the answers with Practical English Usage online, ...

[usually plural] an hour, regarded in terms of the amount of work that can be done by one person in one hour.

hour-index, n. meanings, etymology, pronunciation and more in the Oxford English Dictionary.

noun [usually plural] the amount of work done by one person in one hour. It will take them 2 000 man-hours to get the aircraft flying again.

the time, usually twice a day, when the roads are full of traffic and trains are crowded because people are travelling to or from work.

​a period of 30 minutes. He should arrive within the next half hour. a half-hour drive. Topics Timeb1. Want to learn more?

(ὥρα). The Byz. divided both night and day into 12 hours each (numbered 1 through 12) so one referred to the “seventh hour of the night” (Theoph. 319.10–11) or ...