U+0308 "̈" Combining Diaeresis Unicode Character
Unicode Version 17.0
̈
U+0308 "̈" Combining Diaeresis is a diacritical mark that is placed above a base character to indicate that the vowel should be pronounced separately from the preceding vowel, a function known as diaeresis, or to signal a change in sound, such as in umlaut. It is a combining character, meaning it does not stand alone but is applied to a preceding letter, as seen in words like "naïve" or "coöperate" in English, or in German "ü". This mark differs from the similar-looking umlaut primarily in linguistic context, though they share the same Unicode code point.
General Properties
| Code Point | U+0308 |
| Version Added | 1.1 |
| Name | Combining Diaeresis |
| Unicode 1.0 Name | Non-Spacing Diaeresis |
| Block | Combining Diacritical Marks |
| General Category | Nonspacing Mark |
| Canonical Combining Class | Above |
| Bidirectional Class | Nonspacing Mark |
Encodings
| HTML Decimal Encoding | ̈ |
| HTML Hex Encoding | ̈ |
| UTF-8 Encoding | 0xCC 0x88 |
| UTF-16 Encoding | 0x0308 |
| UTF-32 Encoding | 0x00000308 |
| C/C++/Java Escape | \u0308 |
Unicode Properties
| NFC Quick Check | Maybe |
| NFD Quick Check | Yes |
| NFKC Quick Check | Maybe |
| NFKD Quick Check | Yes |
| Numeric Type | None |
| Numeric Value | NaN |
| Joining Type | Transparent |
| Line Break | Combining Mark |
| East Asian Width | Ambiguous |
| Case Ignorable | Yes |
| Script | Inherited |
| Script Extensions | Armenian Cyrillic Duployan Gothic Greek Hebrew Latin Old Permic Syriac Tai Le Tifinagh |
| Indic Syllabic Category | Other |
| Indic Conjunct Break | Extend |
| ID Continue | Yes |
| XID Continue | Yes |
| Diacritic | Yes |
| Vertical Orientation | Rotated |
| Grapheme Extend | Yes |
| Grapheme Cluster Break | Extend |
| Word Break | Extend |
| Sentence Break | Extend |