nightfall nightfall /ˈnaɪtˌfɔl/

noun

1. () The time of day immediately following sunset  ( crepuscle , crepuscule , evenfall , dusk , fall , gloam [Archaic] , gloaming , nightfall , twilight )
   the time of day immediately following sunset
    He loved the twilight
   he loved the twilight
    They finished before the fall of night
   they finished before the fall of night