U+3131 "ㄱ" Hangul Letter Kiyeok Unicode Character
Unicode Version 17.0
ㄱ
U+3131 "ㄱ" Hangul Letter Kiyeok is the first consonant in the Korean alphabet, Hangul, and represents the sound /k/ at the beginning of a syllable and /ɡ/ in certain voiced contexts. It is classified as a "Hangul Compatibility Jamo" in the Unicode standard, which means it is a separate code point from the modern Korean Standard Hangul Jamo (used for forming modern syllables) and is primarily intended for backward compatibility with older Korean encoding systems. The glyph resembles a simple angled stroke, like a right angle rotated slightly clockwise, and it serves as the basic building block for many other Hangul consonants when modified or doubled.
General Properties
| Code Point | U+3131 |
| Version Added | 1.1 |
| Name | Hangul Letter Kiyeok |
| Unicode 1.0 Name | Hangul Letter Giyeog |
| Block | Hangul Compatibility Jamo |
| General Category | Other Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Compat |
| Decomposition Mapping | "ᄀ" U+1100 Hangul Choseong Kiyeok |
Encodings
| HTML Decimal Encoding | ㄱ |
| HTML Hex Encoding | ㄱ |
| UTF-8 Encoding | 0xE3 0x84 0xB1 |
| UTF-16 Encoding | 0x3131 |
| UTF-32 Encoding | 0x00003131 |
| C/C++/Java Escape | \u3131 |
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 | "ᄀ" U+1100 Hangul Choseong Kiyeok |
| NFKC Simple Casefold | "ᄀ" U+1100 Hangul Choseong Kiyeok |
| 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 |