What is Yiddish word for boyfriend?

There isn't a single, direct Yiddish word for "boyfriend." However, depending on the context, you could use:

* ליבער (Liber): This literally means "beloved" and is a very affectionate term for a romantic partner, similar to "sweetheart" in English.

* בחור (Bochur): This means "young man" or "fellow" and could be used in a casual way to refer to a boyfriend.

* געליבטער (Gelibter): This means "lover" or "beloved" and has a more romantic connotation than "bochur."

* פֿרוינד (Freund): This means "friend" but could be used to refer to a boyfriend in a casual setting.

It's important to note that the best word to use will depend on the specific situation and the level of intimacy you want to convey.