night

The time after sunset and before sunrise while it is dark outside.

Roman goddess of night; daughter of Erebus; counterpart of Greek Nyx.

A period of ignorance or backwardness or gloom.

A shortening of nightfall.

“they worked from morning to night”

Darkness.

“it vanished into the night”

The dark part of the diurnal cycle considered a time unit.

“three nights later he collapsed”

The period spent sleeping.

“I had a restless night”

The time between sunset and midnight.

“he watched television every night”