day

noun
\ ˈdā How to pronounce day (audio) \

Definition of day

 (Entry 1 of 4)

1a : the time of light between one night and the next the shortest day of the year
b : daylight sense 1 woke up at the break of day
c : daytime sleeps during the day and works at night
2 astronomy : the period of rotation of a planet (such as earth) or a moon on its axis the length of one day on Mars
3 : the mean solar day of 24 hours beginning at midnight by mean time open seven days a week the first day of every month Take one pill two times a day.
4 : a specified day or date their wedding day the day of her birth
5 : a specified time or period : age in grandfather's day often used in plural the old daysthe days of sailing ships
6 : the conflict or contention of the day played hard and won the day
7 : the time established by usage or law for work, school, or business starts his day with a cup of coffee after a long day at school We have a busy day tomorrow.
day after day
: for an indefinite or seemingly endless number of days wore the same pants day after day
day in, day out
: for an indefinite number of successive days does the same thing at work day in, day out

Day

biographical name (1)
\ ˈdā How to pronounce Day (audio) \

Definition of Day (Entry 2 of 4)

Clarence Shepard, Jr. 1874–1935 American author

Day

biographical name (2)

Definition of Day (Entry 3 of 4)

Thomas 1748–1789 English author

Day

biographical name (3)

Definition of Day (Entry 4 of 4)

William Rufus 1849–1923 American statesman and jurist

Keep scrolling for more

Synonyms & Antonyms for day

Synonyms: Noun

daylight, daytime

Antonyms: Noun

night, nighttime

Visit the Thesaurus for More 

Examples of day in a Sentence

Noun

We're open seven days a week, 365 days a year. Payment is due on the first day of every month. “What day of the week is the 28th?” “It's a Friday.” He spent five days in the hospital. She left on Thursday and came back four days later. That was the happiest day of my life. Parenthood gets better every day. The office is closed for the day. She works eight hours a day. It costs 10 dollars a day to park there.
See More

Recent Examples on the Web: Noun

Tickets should be purchased at least one day in advance. courant.com, "Community News For The West Hartford Edition," 6 July 2019 The quake, which originated 11 miles outside of Ridge crest, is the largest in 20 years in Southern California and occurred just one day after Thursday's 6.4 earthquake in the same area. Nate Nickolai, chicagotribune.com, "Nicki Minaj, Henry Winkler and more rattled after second Los Angeles earthquake," 6 July 2019 The pan begins to blame itself for Pedro’s repeated failures, but then one day, their luck changes. David James, Anchorage Daily News, "These books will keep kids reading this summer - and discovering Alaska in the process," 6 July 2019 Royal christenings have always been a big deal in the royal family, and today's ceremony featuring baby Archie Harrison Mountbatten-Windsor was no different—except for how private new parents Meghan Markle and Prince Harry decided to keep the day. Halie Lesavage, Glamour, "Kate Middleton's Stella McCartney Look for Archie's Christening Is Giving Us Serious Gossip Girl Vibes," 6 July 2019 The entrepreneur, who would have turned 61 the following day, died along with his daughter Kameron, 22, and five others who weren’t immediately identified. James R. Hagerty, WSJ, "Chris Cline, Miner Who Bet Big on High-Sulfur Coal, Dies in Helicopter Crash," 5 July 2019 Jason Drew, AgriProtein’s boss, reckons fly farms may one day prove ideal places to manage and recycle excrement, especially in poor countries. The Economist, "Beetles and flies are becoming part of the agricultural food chain," 4 July 2019 Michigan also signed Quentin Johnson in this class, a hulking player who is faster than Solomon and could be a fit one day at viper — if Michigan chooses to go that route. Nick Baumgardner, Detroit Free Press, "Michigan football: LB Anthony Solomon will look for his fit," 3 July 2019 Trash and recycling services are unaffected, except in Sykesville, where pickup days were shifted one day forward. Mary Grace Keller, baltimoresun.com, "What’s open, what’s closed in Carroll County for Fourth of July — plus the day after," 3 July 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'day.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of day

Noun

before the 12th century, in the meaning defined at sense 1a

History and Etymology for day

Noun

Middle English, from Old English dæg; akin to Old High German tag day

Keep scrolling for more

Learn More about day

Dictionary Entries near day

dawtie

dawtit

Dax

day

Day

day's duty

day's work

Statistics for day

Last Updated

10 Jul 2019

Look-up Popularity

Time Traveler for day

The first known use of day was before the 12th century

See more words from the same century

Keep scrolling for more

More Definitions for day

day

noun

English Language Learners Definition of day

: a period of 24 hours beginning at midnight : one of the seven time periods that make up a week
: the time of light between one night and the next : the part of the day when light from the sun can be seen
: the part of the day when people are usually most active and when most businesses are open

day

noun
\ ˈdā How to pronounce day (audio) \

Kids Definition of day

1 : the time between sunrise and sunset : daylight
2 : the time a planet or moon takes to make one turn on its axis A day on earth lasts 24 hours.
3 : a period of 24 hours beginning at midnight The offer expires in ten days.
4 : a specified day or date Tuesday is Election Day.
5 : a particular time : age There was no Internet in your grandparent's day.
6 : the time set apart by custom or law for work He works an eight-hour day.

Keep scrolling for more

More from Merriam-Webster on day

Rhyming Dictionary: Words that rhyme with day

Thesaurus: All synonyms and antonyms for day

Spanish Central: Translation of day

Nglish: Translation of day for Spanish Speakers

Britannica English: Translation of day for Arabic Speakers

Britannica.com: Encyclopedia article about day

Comments on day

What made you want to look up day? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

providing supplementary assistance

Get Word of the Day daily email!

Test Your Vocabulary

Farm Idioms Quiz

  • cow coming home
  • What does 'poke' refer to in the expression 'pig in a poke'?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!