Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

English definition of “day”

day

noun [C]     /deɪ/
A1 a period of 24 hours, especially from twelve o'clock one night to twelve o'clock the next night: January has 31 days. the days of the week He runs five miles every day. It took us almost a day to get here. I saw him the day before yesterday. We leave the day after tomorrow. He was last seen alive five days ago. They haven't been seen for days (= for several days). I'll be seeing Pat in a few days/in a few days' time. How's your day been? (= Have you enjoyed today?) Have a nice day! I must get some sleep - I've got a big day (= an important day) tomorrow.Days and times of day A2 used to refer to the period in 24 hours when it is naturally light: a bright sunny day It's rained all day today. These animals sleep during the day and hunt at night.Days and times of day A2 the time that you usually spend at work or at school: a normal working day I work a seven-hour day. We're having to work a six-day week to cope with demand.Days and times of day day off a day when you do not have to work, or do something that you normally do: I won't be in on Thursday; it's my day off. She's taking three days off next week. the other day B1 a few days ago: Didn't I see you in the post office the other day?In the past these days A2 used to talk about the present time, in comparison with the past: Vegetarianism is very popular these days.Now in those days B2 in the past: In those days people used to write a lot more letters.In the past any day now B2 very soon, especially within the next few days: The baby's due any day now.In the future and soon by day when it is naturally light: I prefer travelling by day.Days and times of day day after day B1 repeatedly, every day: The same problems keep coming up day after day.Continually and repeatedly day and night all the time: You can hear the traffic from your room day and night.Continually and repeatedly day by day B2 every day, or more and more as each day passes: Day by day he became weaker.Continually and repeatedly (from) day to day If something changes (from) day to day, it changes often: The symptoms of the disease change from day to day.Continually and repeatedly the days C1 a period in history: How did people communicate in the days before email?Periods of time - general words to this day up to and including the present moment: To this day nobody knows what happened to him.Until a particular moment Grammar:Nowadays, these days or today?We can use nowadays, these days or today as adverbs meaning ‘at the present time, in comparison with the past’:See more
(Definition of day noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of day

Definitions of “day” in other dictionaries

Word of the Day

navigate

to direct the way that a ship, aircraft, etc. will travel, or to find a direction across, along, or over an area of water or land, often by using a map

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More