U+3266 "㉦" Circled Hangul Sios Unicode Character

U+3266 "㉦" Circled Hangul Sios is a precomposed symbol representing the Korean consonant "Siot" (ㅅ) enclosed within a circle, part of the "Enclosed CJK Letters and Months" block. This character is primarily used in East Asian typography, particularly in historical Korean contexts, such as in older newspaper or signage formats where circled letters indicated abbreviations, station names, or numbered lists. It belongs to a set of circled Hangul consonants and vowels designed for compatibility with legacy encoding needs, though modern digital text typically employs combining circle marks or Unicode enclosure sequences instead.