Definition of


  1. (noun, person) United States writer best known for his autobiographical works (1874-1935)
  2. (noun, state) a period of opportunity
    every dog has his day
  3. (noun, time) some point or period in time
    after that day she never trusted him again
    those were the days
    these days it is not unusual
  4. (noun, time) the recurring hours when you are not sleeping (especially those when you are working)
    it was a busy day on the stock exchange
    she called it a day and went to bed
  5. (noun, time) time for Earth to make a complete rotation on its axis
    they put on two performances every day
    there are 30,000 passengers per day
  6. (noun, time) a day assigned to a particular purpose or observance
  7. (noun, time) the time after sunrise and before sunset while it is light outside
    it is easier to make the repairs in the daytime
  8. (noun, time) the time for one complete rotation of the earth relative to a particular star, about 4 minutes shorter than a mean solar day
  9. (noun, time) the period of time taken by a particular planet (e.g. Mars) to make a complete rotation on its axis
  10. (noun, time) an era of existence or influence
    in the days of the Roman Empire
    in the days of sailing ships
    he was a successful pianist in his day

via WordNet, Princeton University

Antonyms of Day


Alternate forms of Day

Derivations: daily

Hyponyms: admission day, afternoon, all fools' day, allhallows eve, american indian day, anniversary, april 14, april fools', april fools' day, arbor day, armed forces day, bissextile day, cinco de mayo, citizenship day, commencement day, crack of doom, date, davis' birthday, day of judgement, day of judgment, day of reckoning, day of remembrance, day of the month, december 31, degree day, doomsday, election day, end of the world, eschaton, eve, even, evening, eventide, father's day, february 12, february 14, february 2, february 22, february 29, field day, first of may, flag day, groundhog day, hallowe'en, halloween, holiday, ides, inauguration day, january 19, january 20, jefferson davis' birthday, judgement day, judgment day, june 14, june 23, june 3, last day, last judgement, last judgment, leap day, lee's birthday, lincoln's birthday, lunar day, march 17, march 2, market day, may 1, may day, midafternoon, midsummer eve, midsummer night, morrow, mother's day, new year's eve, november 5, october 24, off-day, pan american day, patriot's day, payday, polling day, rag day, red-letter day, robert e lee day, robert e lee's birthday, saint patrick's day, saint valentine's day, saint's day, school day, september 17, speech day, st john's eve, st john's night, st patrick's day, st valentine's day, tet, texas independence day, today, tomorrow, united nations day, v-day, valentine day, valentine's day, victory day, walpurgis night, washday, washing day, washington's birthday, wedding day, workday, working day, yesterday

Hypernyms: calendar day, chance, civil day, epoch, era, opportunity, period, period of time, sidereal time, time, time period, time unit, unit of time, work time

Origin of the word Day

  1. O.E. d?g, from P.Gmc. *dagaz, from PIE *dhegh-. Not considered to be related to L. dies (see diurnal), but rather to Skt. dah "to burn," Lith. dagas "hot season," O.Prus. dagis "summer." Meaning originally, in English, "the daylight hours," expanded to mean "the 24-hour period" in late Anglo-Saxon times. Day off first reco… more

via Online Etymology Dictionary, ©2001 Douglas Harper

Words that sound like Day

2d, 3-d, 3d, d, d-day, d.a., d.o.a., da, da'wah, dad, dada, daddy, dado, dah, dat, data, date, dated, daw, dawah, day-to-day, dd, ddi, ddt, de, dea, dead, dead ahead, dead heat, deadeye, deadhead, deadwood, death, death duty, ded, deed, deity

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