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How to write Seoul (서울) in Korean

The capital's name in Hangul: two blocks. 서 puts the vowel on the side; 울 starts with a silent ㅇ, stacks ㅜ underneath and ends in ㄹ.

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서울

Seoul · official romanization Seoul

CityWord

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Build it step by step

The letters of each block, then the block they build. Tap a play button to hear it.

Red first consonantBlue vowelBlack final consonant (batchim)

Block 1: 서 [seo]

2 letters

  1. First consonant

    시옷 siot

    [s]
  2. Vowel

    [eo]

    an open “uh” as in “cup”

Built block · vowel on the right

ㅅ + ㅓ =

서

[seo]

Block 2: 울 [ul]

3 letters

  1. First consonant

    이응 ieung

    [silent]

    silent at the start: it only holds the place

  2. Vowel

    [u]

    u as in “moon”

  3. Final (batchim)

    리을 rieul

    [l]

    l, the tongue touches the ridge

Built block · vowel underneath, final at the bottom

ㅇ + ㅜ + ㄹ =

울

[ul]

All blocks together

서 + 울 =

서울

[Seoul]usually spelled Seoul

Spelling vs. sound

Seoul is exactly the official romanization: 서 = seo, 울 = ul. The “eo” is how romanization writes ㅓ, so 서 sounds closer to “suh” than “see-oh”, and the word has two syllables, not one.

Say it seo-ul, two even beats: ㅅ is an s, ㅓ is an open “uh”, then 울 begins with the vowel ㅜ, the “oo” in “moon”, and ends in ㄹ, an l with the tongue touching the ridge behind the teeth. English speakers often say it as one syllable, like “soul”; in Korean it is suh-ool.

서울 comes from an old native Korean word meaning “capital”, so unlike most Korean city names it has no Chinese characters (hanja) behind it. Why write 울 and not just ㅜ+ㄹ? A block never starts with a bare vowel, so a silent ㅇ holds the first place, like 아 in 코리아.

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