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