night

At the end of the day, when the sun goes down and the world gets dark, it's night. If you work at night, you have to get used to sleeping in the middle of the day.

Night lasts approximately as long as the dark period of a 24-hour day, although in some parts of the world it stays bright and sunny throughout the night in the summertime, and in other areas the sun goes down in the afternoon during winter, long before night has fallen. The Old English root word niht means both "night" and "darkness."

Definitions of night
  1. noun
    the time after sunset and before sunrise while it is dark outside
    synonyms: dark, nighttime
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    Antonyms:
    day, daylight, daytime
    the time after sunrise and before sunset while it is light outside
    types:
    weeknight
    any night of the week except Saturday or Sunday
    wedding night
    the night after the wedding when bride and groom sleep together
    type of:
    period, period of time, time period
    an amount of time
  2. noun
    the time between sunset and midnight
    “he watched television every night
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    type of:
    period, period of time, time period
    an amount of time
  3. noun
    the period spent sleeping
    “I had a restless night
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    type of:
    period, period of time, time period
    an amount of time
  4. noun
    the dark part of the diurnal cycle considered a time unit
    “three nights later he collapsed”
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    type of:
    time unit, unit of time
    a unit for measuring time periods
  5. noun
    a shortening of nightfall
    “they worked from morning to night
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    type of:
    crepuscle, crepuscule, dusk, evenfall, fall, gloam, gloaming, nightfall, twilight
    the time of day immediately following sunset
  6. noun
    a period of ignorance or backwardness or gloom
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    type of:
    period, period of time, time period
    an amount of time
  7. noun
    darkness
    “it vanished into the night
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    type of:
    dark, darkness
    absence of light or illumination
Word Family