D defs.my
Entry 1 sense Webster, 1913

Nightfall

/nīt'-fôlˌ/ · Night·fall · IPA /ˈnaɪt.fɔl/
01 n. The close of the day; the arrival of the night; the period at and just after dusk.
  1. 1.
    The close of the day; the arrival of the night; the period at and just after dusk.