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What Does 아이고 (Aigoo) Mean in Korean?

Written and reviewed by Jun and Jin, native Korean speakers

Published · Updated · How we write & review

After this page, you can use 아이고 (aigoo) for an aching back, a sympathetic sigh or mild exasperation — and hear which one someone means.

10-second answer

What does Aigoo mean?

아이고 (aigoo; the dictionary spelling, and the one people almost always write — 아이구 (aigu) is rare even in texts and subtitles) is Korea's all-purpose sigh — "oh dear," "oh my," "oof," and "good grief" rolled into one sound. It covers physical aches, sympathy, exasperation, relief, and even fond exasperation at someone adorable. Grandparents are famous for it, but everyone says it.

Quick check — did that land?

  1. 1. Your Korean friend hears you failed an exam and says "아이고, 어떡해...". What are they expressing?

아이고! Is someone hurt—or just frustrated?

Quick Examples

아이고, 허리야.

aigo, heoriya.

Oof, my back.

The classic standing-up-from-the-floor sound.

아이고, 어떡해요...

aigo, eotteokaeyo...

Oh no, I'm so sorry to hear that...

Sympathy at bad news.

아이고, 우리 강아지 귀여워라.

aigo, uri gangaji gwiyeowora.

Aww, our puppy is so cute.

Fond, doting 아이고.

아이고, 또 시작이네.

aigo, tto sijagine.

Good grief, here we go again.

Exasperation.

See also: 어머 (omo) — oh my!

One Sound, Many Feelings

FeelingExample situation
Physical strain/painStanding up, lifting something heavy
SympathyHearing someone's bad news
ExasperationA kid making the same mess again
Relief아이고, 다행이다 — thank goodness
EndearmentCooing at a baby or pet
GriefAt funerals — 아이고 아이고 is the traditional wailing sound

Tone is everything: the same three syllables can be a groan, a coo, or a lament. K-dramas are a free masterclass in the differences.

아이고, 배야: The "Oh, My ___!" Pattern and 아이고's Relatives

The Standard Korean Language Dictionary lists four uses of 아이고: pain, exhaustion or shock; happiness at seeing someone (its example is 아이고, 이게 얼마 만이니? — "Oh my, how long has it been?"); despair; and crying, especially the ritual wailing at a funeral. Its examples also show the most useful pattern for learners: 아이고 + a body part + 야/이야, which works like "Oh, my ___!" The same pattern appears with its relatives — the dictionary's own examples include 어이구, 다리야 and 아이코, 팔이야.

아이고, 배야.

aigo, baeya.

Ow, my stomach.

야 after a vowel: 배 (stomach) + 야.

아이고, 다리야.

aigo, dariya.

Oh, my legs.

After a long walk or a day standing.

아이고, 팔이야.

aigo, pariya.

Ow, my arm.

이야 after a consonant: 팔 (arm) + 이야.

WordHow it differs
아이고 (aigo)The standard, all-purpose form
어이구 (eoigu)A standard relative the dictionary defines with 몹시 ("extremely") — stronger pain, shock or joy
아이코 (aiko)Described as harsher than 아이고 — a sudden "ouch!" or "oops!"
아이고머니(나) (aigomeoni(na))Deeper and more heartfelt; 나 adds even more emphasis
아이구 (aigu)A spelling the dictionary treats as non-standard — and one you'll rarely see, even in subtitles or casual texts. People almost always write 아이고

아이고 itself has no polite or casual form — the sentence after it carries the politeness: 아이고, 감사합니다 to an elder, 아이고, 고마워 to a friend (see 감사합니다 vs 고마워 and 반말 vs 존댓말).

The thank-you that often follows an 아이고 is 감사합니다 (kamsahamnida).

Common Mistakes

Mistake #1 — Treating it as 'grandpa slang'

The stereotype is real (Korean parents joke you've become an adult the day 아이고 slips out as you sit down) — but all ages use it naturally.

Mistake #2 — Confusing it with 아이고머니나

That's the extended dramatic version — 'oh my goodness gracious.' Same family, extra theatrics.

Mini Quiz

  1. 2. What makes the meaning of 아이고 change?

  2. 3. When Koreans joke "you're officially an adult now," what triggered it?

Related Knowledge

Learn Next

What Does 어떡해 (Eottoke) Mean?

아이고, 어떡해 is one of the most common word pairs in Korean — learn the second half.

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