U+318A "ㆊ" Hangul Letter Yu-Yeo Unicode Character
Unicode Version 17.0
ㆊ
U+318A "ㆊ" Hangul Letter Yu-Yeo is a historic and now obsolete syllable block used in medieval Korean writing, representing a compound vowel sound that combined the modern vowels "yu" (ㅠ) and "yeo" (ㅕ). This character was developed during the early days of Hangul to capture specific phonetic distinctions present in the Korean language of the 15th century, particularly in the transcription of Chinese characters and in older literary works. While it is no longer used in contemporary Korean, it remains a significant artifact for linguists and historians studying the evolution of Korean phonology and the development of the Hangul script.
General Properties
| Code Point | U+318A |
| Version Added | 1.1 |
| Name | Hangul Letter Yu-Yeo |
| Unicode 1.0 Name | Hangul Letter Yuyeo |
| Block | Hangul Compatibility Jamo |
| General Category | Other Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Compat |
| Decomposition Mapping | "ᆑ" U+1191 Hangul Jungseong Yu-Yeo |
Encodings
| HTML Decimal Encoding | ㆊ |
| HTML Hex Encoding | ㆊ |
| UTF-8 Encoding | 0xE3 0x86 0x8A |
| UTF-16 Encoding | 0x318A |
| UTF-32 Encoding | 0x0000318A |
| C/C++/Java Escape | \u318a |
Unicode Properties
| NFC Quick Check | Yes |
| NFD Quick Check | Yes |
| Numeric Type | None |
| Numeric Value | NaN |
| Line Break | Ideographic |
| East Asian Width | Wide |
| Changes When NFKC Casefolded | Yes |
| NFKC Casefold | "ᆑ" U+1191 Hangul Jungseong Yu-Yeo |
| NFKC Simple Casefold | "ᆑ" U+1191 Hangul Jungseong Yu-Yeo |
| Script | Hangul |
| Script Extensions | Hangul |
| Indic Syllabic Category | Other |
| ID Start | Yes |
| XID Start | Yes |
| ID Continue | Yes |
| XID Continue | Yes |
| Alphabetic | Yes |
| Vertical Orientation | Upright |
| Grapheme Base | Yes |
| Grapheme Cluster Break | Other |
| Word Break | Alphabetic letter |
| Sentence Break | OLetter |