What ᆍ means
It names an old vowel with a repeated U value.
A jungseong is the vowel part of a Hangul syllable block. Unicode groups ᆍ with old medial vowels; an earlier Hangul reference describes it as a doubled form of the Korean letter named U. The single-U medial vowel ᅮ is its related basic form.
How does it fit Hangul history?
It belongs to Hangul’s older vowel inventory.
Hangul was created in 1443; the Hunminjeongeum guide, published in 1446, explained how its letters form syllable blocks. Middle Korean vowel harmony—a tendency for vowels in one word to follow matching patterns—weakened in early modern Korean.
Part of the collection
Who writes ᆍ
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Questions people ask
1Why does ᆍ show as a box on some devices?
Not every system ships a font for the Hangul Jamo block. Where none is installed, the character shows as an empty box; adding a font such as Noto fixes it. The character itself is still correct and copies correctly.
How to type or find ᆍ
- Search it as
- old Hangul vowel · ᆍ meaning · Hangul U-U
- Shows up in
- Anything that takes text · its shape is whatever your font draws
ᆍ\118DCodes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.



