언니 (Unnie) vs 누나 (Noona): What's the Difference?
10-Second Answer
Both 언니 (unnie) and 누나 (noona) refer to an older female you're close to. The choice depends only on who is speaking: female speakers say 언니, male speakers say 누나.
The One Rule
| Speaker | Older female is called… |
|---|---|
| Female | 언니 (eonni) |
| Male | 누나 (nuna) |
(여성) 언니, 밥 먹었어요?
eonni, bap meogeosseoyo?
(Woman) Unnie, have you eaten?
(남성) 누나, 밥 먹었어요?
nuna, bap meogeosseoyo?
(Man) Noona, have you eaten?
Identical sentence — only the speaker's gender changed the word.
Same Person, Two Names
A female fan calls the idol IU "아이유 언니"; a male fan calls her "아이유 누나." Siblings do the same with their own older sister — the younger sister says 언니, the younger brother says 누나.
Nuance Differences Worth Knowing
- 언니 has an extra colloquial use: women addressing female staff at shops and salons, regardless of actual age.
- 누나 carries the "noona romance" flavor in dramas — an older woman with a younger man — though by default it is not romantic.
- Both words imply closeness; neither is for female strangers (저기요 is the neutral call).
The Full 2×2 System
| Older male | Older female | |
|---|---|---|
| Female speaker | 오빠 (oppa) | 언니 (eonni) |
| Male speaker | 형 (hyeong) | 누나 (nuna) |
Mini Quiz
1. A male fan wants to address the older female idol he admires. What does he say?
2. A woman calls the salon staff member 언니 even though the staff is younger. Why?
3. Complete the grid: male speaker → older male: ___ / female speaker → older male: ___
Related Knowledge
Learn Next
오빠 vs 형: What's the Difference?
The other half of the 2×2 grid — same speaker-gender logic applied to older males.
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Start today's study →Last updated: 2026-08-10 · Written and reviewed by a native Korean speaker.