the period of darkness between sunset and sunrise.
the beginning of this period; nightfall.
the darkness of night; the dark.
a condition or time of obscurity, ignorance, sinfulness, misfortune, etc.: the long night of European history known as the Dark Ages.
(sometimes cap.) an evening used or set aside for a particular event, celebration, or other special purpose: a night on the town; poker night; New Year's Night.
unceasingly; continually: She worked night and day until the job was done.
—adj.
of or pertaining to night: the night hours.
occurring, appearing, or seen at night: a night raid; a night bloomer.
used or designed to be used at night: to take a night coach; the night entrance.