noun (n)

• time for Earth to make a complete rotation on its axis(noun.time)

  Example:
  Two days later they left.
  They put on two performances every day.
  There are 30,000 passengers per day.
  

  Synonym:
  24-hour interval, mean solar day, solar day, twenty-four hour period, twenty-four hours
  

  source: wordnet30
• some point or period in time(noun.time)

  Example:
  It should arrive any day now.
  After that day she never trusted him again.
  Those were the days.
  These days it is not unusual.
  

  source: wordnet30
• a day assigned to a particular purpose or observance(noun.time)

  Example:
  Mother's Day.
  

  source: wordnet30
• the time after sunrise and before sunset while it is light outside(noun.time)

  Example:
  The dawn turned night into day.
  It is easier to make the repairs in the daytime.
  

  Synonym:
  daylight, daytime
  Antonym:
  dark, night, nighttime
  

  source: wordnet30
• the recurring hours when you are not sleeping (especially those when you are working)(noun.time)

  Example:
  My day began early this morning.
  It was a busy day on the stock exchange.
  She called it a day and went to bed.
  

  source: wordnet30
• an era of existence or influence(noun.time)

  Example:
  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.
  

  source: wordnet30
• the period of time taken by a particular planet (e.g. Mars) to make a complete rotation on its axis(noun.time)

  Example:
  How long is a day on Jupiter?.
  

  source: wordnet30
• the time for one complete rotation of the earth relative to a particular star, about 4 minutes shorter than a mean solar day(noun.time)

  Synonym:
  sidereal day
  

  source: wordnet30
• a period of opportunity(noun.state)

  Example:
  He deserves his day in court.
  Every dog has his day.
  

  source: wordnet30
• United States writer best known for his autobiographical works (1874-1935)(noun.person)

  Synonym:
  clarence day, clarence shepard day jr.
  

  source: wordnet30
• 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.(noun)

  source: webster1913