U+B684 "뚄" Hangul Syllable Ddyon Unicode Character

U+B684 "뚄" Hangul Syllable Ddyon is a precomposed syllable in the modern Hangul script used for writing the Korean language. It represents the phonetic combination of the initial consonant "dd" (a tensed 'd' sound) and the vowel "yo" with a final consonant "n," forming the single syllable "ddyon." This character falls within the Hangul Syllables block (AC00-D7AF) of the Unicode Standard, which contains all possible syllable blocks formed from the Korean alphabet's chosen consonants and vowels. In modern Korean usage, "뚄" is an extremely rare syllable and does not appear in common vocabulary, existing primarily as a theoretically valid combination within the script's structural system.