A bright sunny day.
- An example of a day is Thanksgiving.
- An example of day is two o'clock in the afternoon.
- the period of light between sunrise and sunset
- the 24-hour period (mean solar day) that it takes the earth to rotate once on its axis with respect to the sun: the civil or legal day is from midnight to midnight, the astronomical day from noon to noon
- Astron. the time that it takes any celestial body to revolve once on its axis
- [oftenD-] a particular or specified day: Memorial Day
- [also pl.] a period or time; era; age: the best writer of her day, in days of old
- a time of flourishing, power, glory, success, etc.: he has had his day
- the struggle or contest occurring on a certain day or in a certain period of time: they won the day
- the time one works each day: an eight-hour day
- an unspecified past or future time: one of these days
- [pl.] one's lifetime; life: to spend one's days in study
Origin of dayMiddle English dai from Old English dæg (pl. dagas), akin to Old Norse dagr, Gothic dags, Old High German tag from Proto-Germanic an unverified form dagwaz, probably from Indo-European base an unverified form a?hes, day, with d- by associated, association with base an unverified form dhegwh-, to burn
back in the day
call it a day
day after day
day by day
day in, day out
from day to day
- from one day to the next
- without particular concern about the future
- The period of light between dawn and nightfall; the interval from sunrise to sunset.
- a. The 24-hour period during which the earth completes one rotation on its axis, traditionally measured from midnight to midnight.b. The period during which a celestial body makes a similar rotation.
- One of the numbered 24-hour periods into which a week, month, or year is divided.
- The portion of a 24-hour period that is devoted to work, school, or business: an eight-hour day; a sale that lasted for three days.
- A 24-hour period or a portion of it that is reserved for a certain activity: a day of rest.
- a. A specific, characteristic period in one's lifetime: In Grandmother's day, skirts were long.b. A period of opportunity or prominence: Every defendant is entitled to a day in court. That child will have her day.
- A period of time in history; an era: We studied the tactics used in Napoleon's day. The day of computer science is well upon us.
- days Period of life or activity: The sick cat's days will soon be over.
- Of or relating to the day.
- Working during the day: the day nurse.
- Occurring before nightfall: a day hike.
Origin of dayMiddle English dai, day from Old English dæg ; see agh- in Indo-European roots.
- A patronymic surname derived from a medieval diminutive of David.
- An English surname from day as a word for a "day-servant", an archaic term for a day-laborer. ,or from given names such as Dagr, Daug, Dege, and Dey, cognate with Scandinavian Dag.
- An Irish surname anglicised from Ó Deághaidh (“descendant of a person named Good Luck”).
This surname has multiple origins. Besides the ones listed below, Norman origin has also been suggested from De Haie", or "a corruption of the Normandy French D'Ossone, from the town of Ossone, in Normandy".