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아이고 (aigo / aigoo) meaning: it is a sigh, not “sorry”

아이고 (aigo) means: Oof. / Oh dear. / Goodness. / Ugh, my back.

💬 Use it yourself: any time you'd sigh in English. Drop something → 아이고 (ah-ee-goo). Hear bad news → 아이고. Get up off the floor → 아이고.

⚡ Learners reach for this the moment they mess up, thinking it means "sorry." It doesn't — and the gap between a sigh and an apology is exactly where you get caught.

🔊 AH-ee-goo (아 + 이 + 고 — three sounds, not "ay." Often stretched: aaah-ee-gooo)

Actually: Oof. / Oh dear. / Goodness. / Ugh, my back.

The all-purpose sigh. Sympathy, exhaustion, mild pain, mild exasperation, and standing up from a chair. You'll see it romanized as aigoo in fan subs.

🎬 Scene: Mom sees her grown daughter come home at 3 a.m., shoes in hand.

A · "아이고, 이 녀석아…" (ah-ee-goo, ee nyuh-suh-ga…) — "Oh, you little…"
B · "엄마, 안 잤어?" (uhm-ma, an ja-ssuh?) — "Mom, you're still up?"

🎁 Fun fact: Koreans say this when lifting things the way Americans say "oof." Once you notice it, you can't unnotice it.
⚠️ Don't use it as an apology. Learners reach for 아이고 after a mistake, but it's a sigh, not a sorry — you still need 죄송합니다 (jweh-song-ham-nee-da).

Quick answers

What does 아이고 (aigo) mean?

아이고 (aigo) means: Oof. / Oh dear. / Goodness. / Ugh, my back.

How do you pronounce 아이고?

AH-ee-goo (아 + 이 + 고 — three sounds, not "ay." Often stretched: aaah-ee-gooo)

When should you not say 아이고?

Don't use it as an apology. Learners reach for 아이고 after a mistake, but it's a sigh, not a sorry — you still need 죄송합니다 (jweh-song-ham-nee-da).

More words: 대박 · 헐 · 진짜 · 어떡해 · 답답해 · 오빠 · 건배 · 화이팅 · 잘 먹겠습니다 · 멍때리다 · 차애