the period of time between sunset and sunrise

the period of time deep into the night, typically when people are asleep

very late at night

to stay somewhere for the duration of the night

at night or during the period between evening and morning

nightclub; nightspot

to stay up late or all night

A meal or snack eaten late at night or around midnight.

tonight; this evening

the whole night; all through the night

that very night or through the night to complete a task

throughout both day and night; around the clock; continuously

continuously, without stop; round the clock

the dim light or darkness characteristic of the nighttime

reunion dinner on Lunar New Year's Eve (Chinese New Year tradition)

lasting through the night or spanning from one day to the next

nightscape; night view

the metaphorical curtain of darkness that falls at night; gathering darkness

the period of time or lead-up immediately preceding a significant event or change

in the dead of night when all is quiet

the whole night

day and night; regardless of the time of day or night

to be on duty or keep guard throughout the night

every night; nightly

a long dark night

night life

continuously throughout the day and the night; all the time

An educational institution that provides classes in the evening, typically for adults who work during the day.

night and day; continuous strenuous effort

a person who looks or behaves in a ferocious, terrifying, or ugly manner

an evening performance or session at a theater, cinema, or other entertainment venue

at nightfall; as night falls

a night during which it is raining.

traveling or working throughout the night, often implying speed or urgency

on that night

to travel, walk, or depart during the night

to travel, visit a place, or go on an excursion at night

a moonlit night

nightjar (nocturnal bird in the family Caprimulgidae)