U+0158 "Ř" Latin Capital Letter R with Caron Unicode Character
U+0158 "Ř" Latin Capital Letter R with Caron is a distinct letter used primarily in the Czech, Slovak, and Sorbian alphabets, where it represents a raised alveolar trill or a fricative trill, pronounced similarly to a rolled R but with the tongue positioned like the English "zh" sound. It is formed by adding a caron (a small diacritical mark resembling an inverted circumflex) above the standard Latin letter R. This character is part of the Latin Extended-A block in Unicode and is essential for proper spelling in languages that use it, as it can distinguish meaning between words, such as in the Czech words "řeka" (river) and "reka" (a different term). Typographically, the caron is placed above the capital R, while its lowercase counterpart, "ř" (U+0159), often sees the caron modified to a small v-like shape over the letter.
General Properties
| Code Point | U+0158 |
| Version Added | 1.1 |
| Name | Latin Capital Letter R with Caron |
| Unicode 1.0 Name | Latin Capital Letter R Hacek |
| Block | Latin Extended-A |
| General Category | Uppercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
| Decomposition Type | Canonical |
| Decomposition Mapping | "R" U+0052 Latin Capital Letter R "̌" U+030C Combining Caron |
Encodings
| HTML Decimal Encoding | Ř |
| HTML Hex Encoding | Ř |
| UTF-8 Encoding | 0xC5 0x98 |
| UTF-16 Encoding | 0x0158 |
| UTF-32 Encoding | 0x00000158 |
| C/C++/Java Escape | \u0158 |
Unicode Properties
| NFC Quick Check | Yes |
| NFKC Quick Check | Yes |
| Numeric Type | None |
| Numeric Value | NaN |
| Line Break | Alphabetic |
| Uppercase | Yes |
| Simple Lowercase Code Point | "ř" U+0159 Latin Small Letter R with Caron |
| Lowercase Code Point | "ř" U+0159 Latin Small Letter R with Caron |
| Simple Case Folding | "ř" U+0159 Latin Small Letter R with Caron |
| Case Folding | "ř" U+0159 Latin Small Letter R with Caron |
| Cased | Yes |
| Changes When Casefolded | Yes |
| Changes When Casemapped | Yes |
| Changes When Lowercased | Yes |
| Changes When NFKC Casefolded | Yes |
| NFKC Casefold | "ř" U+0159 Latin Small Letter R with Caron |
| NFKC Simple Casefold | "ř" U+0159 Latin Small Letter R with Caron |
| 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 | Upper |