(colloquial, usually childish) Goodnight.

Alternative form of night night

(countable) The period between sunset and sunrise, when a location faces far away from the sun, thus when the sky is dark.

Ellipsis of good night.

To spend a night (in a place), to overnight.

at night (during night-time, especially on a regular basis)

plural of night

The 92nd sura (chapter) of the Qur'an. / (Germanic paganism) The goddess of the night in Heathenry.

During the night.

Archaic spelling of tonight.