plural of night snake

A night in which women are given free admission into a venue.

plural of field night

A night marked by some important gathering, discussion, etc.

To utter the farewell “good night”.

plural of night air

(obsolete) A miasma, or noxious atmosphere. / Used other than figuratively or idiomatically: see night, air.

(US) An inexpensive, easily obtained handgun. / (business) An unexpected takeover bid that gives its opponents little time to respond.

(political philosophy) A government with the least necessary power over its citizens.

(Britain) The revelry on Guy Fawkes Day (the 5th of November) in commemoration of the failure of the Gunpowder Plot of 1605, traditionally including the burning of effigies of the pope, Guy Fawkes, and/or the Devil.