[n] Roman goddess of night; daughter of Erebus; counterpart of Greek Nyx
[n] darkness; "it vanished into the night"
[n] the dark part of the diurnal cycle considered a time unit; "three nights later he collapsed"
[n] the time after sunset and before sunrise while it is dark outside
[n] the time between sunset and midnight; "he watched television every night"
[n] the period spent sleeping; "I had a restless night"
[n] a period of ignorance or backwardness or gloom
[n] a shortening of nightfall; "they worked from morning to night"