hourhour /aʊə $ aʊr/ ●●●S1W1 noun [countable] 🔊 🔊 160 minutes (written abbreviation hr)TMC a unit for measuring time. There are 60 minutes in one hour, and 24 hours in one day 🔊 The interview will last about two hours. 🔊 I study for an hour every night. 🔊 I’ll be back in three hours. 🔊 Three hours later he was back. 🔊 Her bag was stolen within hours of her arrival. 🔊 You weren’t interested in my story a half hour ago. 🔊 It takes about a quarter of an hour to walk into town.hour of 🔊 After four hours of talks, an agreement was reached. 🔊 The hotel is only an hour’s drive from the airport. 🔊 a top speed of 120 miles an hour 🔊 This was freelance work, paid by the hour. 🔊 a five-hour delay2 →hours3 →long/regular/late etc hours4time of dayPERIOD OF TIME a particular period or point of time during the day or nightin the early/small hours (of the morning) (=between around midnight and two or three o’clock in the morning) 🔊 There was a knock on the door in the early hours of the morning. 🔊 Who can be calling at this late hour? (=used when you are surprised or annoyed by how late at night or early in the morning something is)daylight/daytime hours 🔊 The park is open during daylight hours.the hours of darkness/daylight literary 🔊 Few people dared to venture out during the hours of darkness.unearthly/ungodly hour (=used when you are complaining about how early or late something is) 🔊 We had to get up at some ungodly hour to catch a plane.at all hours/at any hour (of the day or night) (=at any time) 🔊 If you have a problem, you know you can call at any hour of the day or night. 🔊 She’s up studying till all hours (=until unreasonably late at night). → waking hours/life/day etcat waking5long time [usually plural] informalLONG TIME a long time or a time that seems long 🔊 We had to spend hours filling in forms.for hours (on end) 🔊 It’ll keep the children amused for hours on end. 🔊 a really boring lecture that went on for hours and hours 🔊 She lay awake for hour after hour (=for many hours, continuously).6o’clockTIME/WHAT TIME IS IT the time of the day when a new hour starts, for example one o’clock, two o’clock etcstrike/chime the hour (=if a clock strikes the hour, it rings, to show that it is one o’clock, seven o’clock etc)(every hour) on the hour (=every hour at six o’clock, seven o’clock etc) 🔊 There are flights to Boston every hour on the hour.10/20 etc minutes before/after the hour American English (=used on national radio or television in order to give the time without saying which hour it is, because the broadcast may be coming from a different time zone) 🔊 It’s twelve minutes before the hour, and you’re listening to ‘Morning Edition’ on NPR.7 →1300/1530/1805 etc hours8 →by the hour/from hour to hour9 →lunch/dinner hour10important timePERIOD OF TIME [usually singular] an important moment or period in history or in your lifesomebody’s finest/greatest/darkest hour 🔊 This was our country’s finest hour.somebody’s hour of need/glory etc (=a time when someone needs help, is very successful etc)11 →of the hour → the eleventh hourat eleventh1(2), → hourly, happy hour, rush hour, zero hourCOLLOCATIONSphraseshalf an hour (also a half hour) (=thirty minutes)I’ll meet you in half an hour.(a) quarter of an hour (=fifteen minutes)Mum was gone for about a quarter of an hour.three quarters of an hour (=forty-five minutes)The journey takes three quarters of an hour.miles/kilometres an hour (=used in speeds)The speed limit is 65 miles an hour.£10/$7 etc an hour (=used to say how much someone is paid or how much you pay to use something)The babysitter charges £5 an hour.an hour’s/six hours’ etc work (=work that it took you an hour/six hours etc to do)I did two hours’ work before breakfast.an hour’s walk/drive etcIt’s about an hour’s drive away.adverbsan hour/three hours etc laterAn hour later she arrived home.an hour/three hours etc earlier/beforeI had just seen him a few hours earlier.an hour/three hours etc agoHe left an hour ago.verbstake an hour (=something needs an hour to do)It took about three hours to paint the whole room.spend an hourI spent an hour reading.last (for) an hourThe meeting lasted almost two hours.pay/charge by the hour (=pay or charge someone according to the number of hours it takes to do something)You can pay by the hour to hire a boat.