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1. The time after sunset and before sunrise while it is dark outside
   - nighttime, dark
    
2. A period of ignorance, backwardness or gloom
    
3. The period spent sleeping
   "I had a restless night"
    
4. The dark part of the diurnal cycle considered a time unit
   "three nights later he collapsed"
    
5. Darkness
   "it vanished into the night"
    
6. A shortening of nightfall
   "they worked from morning to night"
    
7. The time between sunset and midnight
   "he watched television every night"

1. Roman goddess of night; daughter of Erebus; counterpart of Greek Nyx
   - Nox

Sounds like: kn

Derived forms: nights

Type of: crepuscle, crepuscule, dark, darkness, dusk, evenfall, fall, gloam [archaic], gloaming, nightfall, period, period of time, Roman deity, time period, time span, time unit, twilight, unit of time

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

Encyclopedia: Night, Mother