U+2128 "ℨ" Black-Letter Capital Z Unicode Character
Unicode Version 17.0
ℨ
U+2128 "ℨ" Black-Letter Capital Z is a stylized capital letter Z rendered in the black-letter or Fraktur typeface, often associated with medieval manuscripts, German Gothic scripts, and formal mathematical or scientific notation. It belongs to the Letterlike Symbols block in the Unicode standard and is sometimes used in mathematics to denote specific sets, such as the set of integers, or in historical and linguistic contexts to represent a distinct typographic variant. Unlike its standard Latin counterpart, this character carries a decorative, ornate appearance that distinguishes it as a specialized symbol rather than a common letter for everyday text.
General Properties
| Code Point | U+2128 |
| Version Added | 1.1 |
| Name | Black-Letter Capital Z |
| Unicode 1.0 Name | Black-Letter Z |
| Block | Letterlike Symbols |
| General Category | Uppercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Font |
| Decomposition Mapping | "Z" U+005A Latin Capital Letter Z |
Encodings
| HTML Decimal Encoding | ℨ |
| HTML Hex Encoding | ℨ |
| UTF-8 Encoding | 0xE2 0x84 0xA8 |
| UTF-16 Encoding | 0x2128 |
| UTF-32 Encoding | 0x00002128 |
| C/C++/Java Escape | \u2128 |
Unicode Properties
| NFC Quick Check | Yes |
| NFD Quick Check | Yes |
| Numeric Type | None |
| Numeric Value | NaN |
| Line Break | Alphabetic |
| Uppercase | Yes |
| Cased | Yes |
| Changes When NFKC Casefolded | Yes |
| NFKC Casefold | "z" U+007A Latin Small Letter Z |
| NFKC Simple Casefold | "z" U+007A Latin Small Letter Z |
| Script | Common |
| Script Extensions | Common |
| Indic Syllabic Category | Other |
| ID Start | Yes |
| XID Start | Yes |
| ID Continue | Yes |
| XID Continue | Yes |
| Alphabetic | Yes |
| Math | Yes |
| Other Math | Yes |
| Vertical Orientation | Rotated |
| Grapheme Base | Yes |
| Grapheme Cluster Break | Other |
| Word Break | Alphabetic letter |
| Sentence Break | Upper |