This is the 14732nd most frequent German word.
nuit
The German language does not have the word "nuit." "Nuit" is French for "night." In German, "night" is "Nacht."
The word 'Nacht' means 'night' in German and is used with 'letzte' to denote 'last night'.
Ich habe letzte Nacht gut geschlafen.
I slept well last night.
Here, 'Nacht' is a noun representing 'night' and is described as 'long' and 'quiet'.
Die lange Nacht war sehr ruhig.
The long night was very quiet.
'Nachts' is an adverbial form of 'Nacht', meaning 'at night'.