Hangul syllable ddoess

뙸 is one written Korean syllable.

In Unicode, 뙸 is the precomposed form of three Hangul letters called jamo: initial ᄄ, vowel ᅬ, and final ᆻ. The same syllable can appear as the separate sequence 뙸; NFC normalization joins those parts into one block.

Hangul was designed to address Korean writing practices that used Chinese characters. Idu, Gugyeol, and Hyangchal were methods of adapting those characters to write Korean. Hangul was used in religious, private, everyday, and practical writing before becoming the standard script for Korean.