die dunkle Nacht
Nacht is the German word for night.
nacht
You say "Gute Nacht".
It's hard to say exactly, but it's generally accepted to have started with Kristallnacht (night of the broken glass) on November 9 1938, when the front windows of Jewish-owned shops and houses were broken by rioters.
English: "good night" is German: "Gute Nacht".
Into the night and fog in German is In die Nacht und in den Nebel hinein
when you break glass, people say that you'll have bad luck for like, two weeks, but it's just superstition.
Ihr Knöchel ist gebrochen.
Spielnacht or Spiel Nacht
"What are you doing this Friday night?" = "Was machst du Freitagabend?"
Not really. A broken glass is still glass; no chemical change has occurred. But it is physically different, so it is better to say a physical change happened.
die Nacht der Toten