What is nuna of Korean language?

"Nuna" (누나) in Korean is a term used by males to refer to their older sister. It can also be used to refer to any older woman who is close to them, but not necessarily a relative.

Here's a breakdown:

* Meaning: Older sister (formal)

* Usage: Used by males to refer to their older sister or any older woman they are close to.

* Similar English term: Sister (but more formal and affectionate)

Example:

* "나의 누나는 의사야." (Na-ui nuna-neun uisaya.) - "My older sister is a doctor."

Note: There is no direct equivalent for "nuna" when referring to a woman's older sister. Women would use "언니" (eonni) to refer to their older sister.