night

noun

• 1the period from sunset to sunrise in each twenty-four hours:a moonless night the door is always locked at night
• the night as the interval between two days:supplements per person per night
• the darkness of night:a line of watchfires stretched away into the night
• literary nightfall.

• 2the period between afternoon and bedtime; an evening:he was not allowed to go out on weekday nights
• an evening characterized by a particular event or activity:a quiz night wasn’t it a great night out?

exclamation

• short for goodnight.

adverb

• during the night; at night:investments that won’t keep us awake nights with worry