Formal:
* 아가씨 (agassi): This is the most common and formal way to address a single woman. It's similar to "Miss" in English.
* 양반 (yangban): This term is less common but also formal. It literally means "nobleman" but can be used to refer to a lady in a polite and respectful way.
Informal:
* 아가씨 (agassi): While this is also the formal term, it can be used informally as well, especially among friends and family.
* 애기 (aegi): This means "baby" and is used informally to refer to a young woman in a friendly or affectionate way. It's not appropriate for strangers or formal situations.
Other:
* 여자 (yeoja): This literally means "woman" and can be used in some contexts, but it's not as common as "agassi" and can be considered less polite.
Important Notes:
* It's important to choose the right term based on the situation and your relationship with the person you're addressing.
* Using "agassi" is generally safe in most situations, but it's always a good idea to pay attention to the context and choose the most appropriate term.
It's always best to err on the side of formality when addressing someone in Korean.