How do you say bye in yiddish?

There are a few ways to say "bye" in Yiddish, depending on the context and level of formality:

Formal:

* פאַרמאַכט זיך! (far-makt zikh!) - Literally "Close yourself!", but used as a polite way to say goodbye, similar to "Take care!"

* אַדיו (adieu) - This is the more formal and direct translation of "goodbye".

Informal:

* אַ גוטן טאָג! (a gutn tog!) - "Have a good day!"

* שָׁלוֹם (shalom) - "Peace" or "goodbye", used as a more general greeting and farewell.

* זיי געזונט (zay gezunt) - "Be healthy" or "Take care".

* ביז דעם קומענדיקן מאָל (biz dem kumendikn mol) - "Until next time."

Slang:

* טשיוס (tchius) - A shortened form of "chau" (short for "chau-chau", a German word for "goodbye"), similar to "Ciao".

* טשיקס (tchiks) - A more informal way to say "goodbye", similar to "later".

The best choice will depend on the situation and your relationship with the person you're saying goodbye to.