General relaxation:
* רויק זיין (royk zayn): This literally means "to be calm" and is the most common way to say "relax."
* שפּאַן זיך (shpan zich): This means "to loosen up" and suggests relaxing physically.
* אַרוישטאַן (aroysshtan): This means "to take a break" and implies taking a moment to rest.
Relaxing in a specific way:
* נישט שטאַפּן (nisht shtapen): This means "don't stress" and implies easing up on worry.
* ברענג זיך אַרויף (breng zich aroif): This means "cheer up" and implies relaxing emotionally.
* נעמען עס לייכט (nemen es leycht): This means "take it easy" and suggests relaxing your attitude.
The best way to say "relax" in Yiddish will depend on the context and the specific meaning you want to convey.