U+00F6 "ö" Latin Small Letter O with Diaeresis Unicode Character
Unicode Version 17.0
ö
U+00F6 "ö" Latin Small Letter O with Diaeresis is a precomposed glyph representing the letter "o" with two dots, or a diaeresis, placed above it. This character is used in multiple languages, including German, Swedish, Finnish, and Hungarian, where it denotes a distinct vowel sound, often a front rounded vowel, and is considered a separate letter in many alphabets. In English contexts, it primarily appears in loanwords and names, such as "coöperate" in older orthography, serving either to indicate that the "o" is pronounced separately from an adjacent vowel or to preserve the original spelling of foreign terms.
General Properties
| Code Point | U+00F6 |
| Version Added | 1.1 |
| Name | Latin Small Letter O with Diaeresis |
| Unicode 1.0 Name | Latin Small Letter O Diaeresis |
| Block | Latin-1 Supplement |
| General Category | Lowercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Canonical |
| Decomposition Mapping | "o" U+006F Latin Small Letter O "̈" U+0308 Combining Diaeresis |
Encodings
| HTML Decimal Encoding | ö |
| HTML Hex Encoding | ö |
| UTF-8 Encoding | 0xC3 0xB6 |
| UTF-16 Encoding | 0x00F6 |
| UTF-32 Encoding | 0x000000F6 |
| C/C++/Java Escape | \u00f6 |
Unicode Properties
| NFC Quick Check | Yes |
| NFKC Quick Check | Yes |
| Numeric Type | None |
| Numeric Value | NaN |
| Line Break | Alphabetic |
| Lowercase | Yes |
| Simple Uppercase Code Point | "Ö" U+00D6 Latin Capital Letter O with Diaeresis |
| Simple Titlecase Code Point | "Ö" U+00D6 Latin Capital Letter O with Diaeresis |
| Uppercase Code Point | "Ö" U+00D6 Latin Capital Letter O with Diaeresis |
| Titlecase Code Point | "Ö" U+00D6 Latin Capital Letter O with Diaeresis |
| Cased | Yes |
| Changes When Casemapped | Yes |
| Changes When Titlecased | Yes |
| Changes When Uppercased | Yes |
| Script | Latin |
| Script Extensions | Latin |
| Indic Syllabic Category | Other |
| ID Start | Yes |
| XID Start | Yes |
| ID Continue | Yes |
| XID Continue | Yes |
| Alphabetic | Yes |
| Vertical Orientation | Rotated |
| Grapheme Base | Yes |
| Grapheme Cluster Break | Other |
| Word Break | Alphabetic letter |
| Sentence Break | Lower |