Definition of day :
1. ( Preceded by the) Some day in particular, as some day of contest, some anniversary, etc.
2. A specified time or period; time, considered with reference to the existence or prominence of a person or thing; age; time.
3. The period of the earth's revolution on its axis. -- ordinarily divided into twenty- four hours. It is measured by the interval between two successive transits of a celestial body over the same meridian, and takes a specific name from that of the body. Thus, if this is the sun, the day ( the interval between two successive transits of the sun's center over the same meridian) is called a solar day; if it is a star, a sidereal day; if it is the moon, a lunar day. See Civil day, Sidereal day, below.
4. The time of light, or interval between one night and the next; the time between sunrise and sunset, or from dawn to darkness; hence, the light; sunshine.
5. Those hours, or the daily recurring period, allotted by usage or law for work.
delay, solar day, daylight, damp, breakthrough, cockcrow, bad, peak, chapter, existence, daytime, sidereal day, high tide, someone's getting there, live, end, have something in your pocket, be halfway there, workday, prime, distance, dawning, morn, daybreak, even, holiday, life, be onto a winner, eve, sunup, evening, morning, mean solar day, countdown, glory days, bedtime, twenty-four hour period, be in/out of the running, someone's day in the sun, twenty-four hours, afternoons, anniversary, golden age, sun, stand a chance/hope (of doing something), heyday, afternoon, the cards are stacked in someone's favor, have a fighting chance, light, stop work, pinnacle, Clarence Shepard Day Jr., stop, hot, duration, flowering, quit, block, sunrise, aurora, celebration, darkness, you can't go wrong, someone should/will go far, span, date, cold, call it quits, comeback, Clarence Day, festival
point of time (part of speech: noun)
- Only remember, Massa Warren, remember Crookleg to your dyin' day!" - "The White Squaw", Mayne Reid.
- I called the next day. - "The Memoires of Casanova, Complete The Rare Unabridged London Edition Of 1894, plus An Unpublished Chapter of History, By Arthur Symons", Jacques Casanova de Seingalt.
- Why I'd sit here all day for nothin'! - "McAllister and His Double", Arthur Train.