Dictionary

day

noun \ˈdā\

: 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

Full Definition of DAY

1
a :  the time of light between one night and the next
b :  daylight 1
c :  daytime
2
:  the period of rotation of a planet (as earth) or a moon on its axis
3
:  the mean solar day of 24 hours beginning at mean midnight
4
:  a specified day or date
5
:  a specified time or period :  age <in grandfather's day> —often used in plural <the old days> <the 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
day after day
:  for an indefinite or seemingly endless number of days
day in, day out
:  for an indefinite number of successive days
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Origin of DAY

Middle English, from Old English dæg; akin to Old High German tag day
First Known Use: before 12th century

Day

biographical name \ˈdā\

Definition of DAY

Clarence Shepard, Jr. 1874–1935 Am. author

Day

biographical name

Definition of DAY

Thomas 1748–1789 Eng. author

Day

biographical name

Definition of DAY

William Rufus 1849–1923 Am. statesman & jurist
DAY Defined for Kids

day

noun \ˈdā\

Definition of DAY for Kids

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.>
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