What is the meaning of days?

noun

• Time for Earth to make a complete rotation on its axis.
  • usage: "two days later they left"; "they put on two performances every day"; "there are 30, 000 passengers per day"
  • synonyms: day, twenty-four hours, twenty-four hour period, 24-hour interval, solar day, mean solar day
• Some point or period in time.
  • usage: "it should arrive any day now"; "after that day she never trusted him again"; "those were the days"; "these days it is not unusual"
  • synonyms: day
• A day assigned to a particular purpose or observance.
  • usage: "Mother's Day"
  • synonyms: day
• The time after sunrise and before sunset while it is light outside.
  • usage: "the dawn turned night into day"; "it is easier to make the repairs in the daytime"
  • synonyms: day, daytime, daylight
• The recurring hours when you are not sleeping (especially those when you are working. )
  • usage: "my day began early this morning"; "it was a busy day on the stock exchange"; "she called it a day and went to bed"
  • synonyms: day
• An era of existence or influence.
  • usage: "in the day of the dinosaurs"; "in the days of the Roman Empire"; "in the days of sailing ships"; "he was a successful pianist in his day"
  • synonyms: day
• The period of time taken by a particular planet (e. G. Mars) to make a complete rotation on its axis.
  • usage: "how long is a day on Jupiter"
  • synonyms: day
• The time for one complete rotation of the earth relative to a particular star, about 4 minutes shorter than a mean solar day.
  • synonyms: sidereal day, day
• A period of opportunity.
  • usage: "he deserves his day in court"; "every dog has his day"
  • synonyms: day
• United States writer best known for his autobiographical works (1874-1935.
  • synonyms: Day, Clarence Day, Clarence Shepard Day Jr.
• The time during which someone's life continues.
  • usage: "the monarch's last days"; "in his final years"
  • synonyms: years