Korean phrase
~ 무엇이에요? ~ mu eo si e yo
Meaning
What is ___?
When to use it
It is a polite way to ask what something is. It is used to identify an unfamiliar object or thing in a respectful setting.
Example dialogue
이거 무엇이에요? i geo mu eo si e yo
What is this?
그건 열쇠예요. keu geon yeol soe ye yo
That is a key.