안녕히주무세요 (annyoung hi joo moo seh yo) <---formal way
잘자 (jal jah)<--- to same age or younger
잘자요 (jal jah yo) <---- same age but don't know them really well
You can say "lafi" to say goodnight in Mandinka.
In Berber, you can say "tanemirt" to say goodnight.
goodnight
"Goodnight".
goodnight!
In Fulani, you can say "Jaama wolof" to say goodnight.
In Pangasinan, you can say "napagtolak" to mean goodnight.
shab bekheyr
In Polish, you say "dobranoc" to wish someone goodnight.
In British English, you can say "goodnight" or "night" as a shorter version.
In Sondhi, you can say "ດີ່ນກັນ" (dien kan) to say goodnight.
goodnight is "bonne nuit" in France.