A period of darkness that occurs in winter in polar regions north from the Arctic Circle and south from the Antarctic Circle, and during which the sun stays below the horizon.

(now only Caribbean) A (night-flying) bat. / (now literary) A ghost, an evil spirit. / (Jamaica) A large nocturnal moth.

plural of night terror

(pathology) A sleeping disorder, where sleep is interrupted by anxiety, panic or screaming.

A regular night on which a couple goes out on a date. For example, a couple may go on a date every Friday night.

A bird that is active in the night; a nocturnal bird. / A human denizen of night.

Walpurgisnacht ("Walpurga's night"), a feast of witchcraft in German folklore, observed on 30 April. / (by extension) Any orgiastic or bacchanalian party.

A traditional Cornish feast, held on the Monday before Lent, during which local youths would undertake acts of minor vandalism and play practical jokes.

Alternative form of night watch

plural of night-man