U+3147 "ㅇ" Hangul Letter Ieung Unicode Character
Unicode Version 17.0
ㅇ
U+3147 "ㅇ" Hangul Letter Ieung is a unique and essential element of the Korean Hangul writing system, where it functions as both a consonant placeholder and a sound. In its role as a placeholder, it appears at the beginning of a syllable to mark the absence of an initial consonant sound, allowing a vowel to stand alone graphically while being silent. However, when placed at the end of a syllable in its final consonant position, it is pronounced as the velar nasal sound /ŋ/, similar to the 'ng' in the English word "song." This duality makes ㅇ critical for correct Hangul spelling and pronunciation, as it distinguishes between empty initials and final nasal sounds across countless Korean words and phrases.
General Properties
| Code Point | U+3147 |
| Version Added | 1.1 |
| Name | Hangul Letter Ieung |
| Block | Hangul Compatibility Jamo |
| General Category | Other Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Compat |
| Decomposition Mapping | "ᄋ" U+110B Hangul Choseong Ieung |
Encodings
| HTML Decimal Encoding | ㅇ |
| HTML Hex Encoding | ㅇ |
| UTF-8 Encoding | 0xE3 0x85 0x87 |
| UTF-16 Encoding | 0x3147 |
| UTF-32 Encoding | 0x00003147 |
| C/C++/Java Escape | \u3147 |
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 | "ᄋ" U+110B Hangul Choseong Ieung |
| NFKC Simple Casefold | "ᄋ" U+110B Hangul Choseong Ieung |
| 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 |