day: Meaning and Definition of

day

1. the interval of light between two successive nights; the time between sunrise and sunset:to be carried on during the day. Since there was no artificial illumination, all activities had
2. the light of day; daylight: The owl sleeps by day and feeds by night.
1. Also calledmean solar day.a division of time equal to 24 hours and representing the average length of the period during which the earth makes one rotation on its axis.
2. Also calledsolar day.a division of time equal to the time elapsed between two consecutive returns of the same terrestrial meridian to the sun.
3. Also calledcivil day.a division of time equal to 24 hours but reckoned from one midnight to the next. Cf. lunar day, sidereal day.
4. an analogous division of time for a planet other than the earth: the Martian day.
5. the portion of a day allotted to work: an eight-hour day.
6. a day on which something occurs: the day we met.
7. (often cap.) a day assigned to a particular purpose or observance: New Year's Day.
8. a time considered as propitious or opportune: His day will come.
9. a day of contest or the contest itself: to win the day.
10. Often,a particular time or period: the present day; in days of old.
11. Usually,period of life or activity: His days are numbered.
12. period of existence, power, or influence: in the day of the dinosaurs.
13. light (def. 19a).
14. to stop one's activity for the day or for the present; quit temporarily: After rewriting the paper, she decided to call it a day.
15. every day without fail; regularly: They endured the noise and dirt of the city day in, day out.

Day

1. 1874–1935, U.S. author.
2. 1897–1980, U.S. Roman Catholic social activist, journalist, and publisher.