noun
nightfall
NYT-fawl
noun
1
The time when day turns to night; dusk.
"We need to reach camp before nightfall."
How to Use Nightfall
Learner’s notesIn plain EnglishThe moment evening turns into night.
Common pairings
before nightfall
at nightfall
Word Forms
nightfalls plural
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Etymology
From night + fall, on the pattern of the sun or light "falling" away at the end of the day.