U+0304 "̄" Combining Macron Unicode Character
Unicode Version 17.0
̄
U+0304 "̄" Combining Macron is a diacritical mark that appears as a horizontal line placed above a base letter, used in various writing systems to modify pronunciation or indicate vowel length, such as in Latin transliterations of ancient Greek or in phonetic alphabets like the International Phonetic Alphabet. Unlike a non-combining macron encoded as a standalone character, this combining version is designed to attach directly to the preceding character, allowing for flexible positioning within digital text. Its inclusion in Unicode ensures consistent representation across platforms, supporting linguistic notation for languages like Māori, Latvian, and Hawaiian where the macron distinguishes meaning or grammatical function.
General Properties
| Code Point | U+0304 |
| Version Added | 1.1 |
| Name | Combining Macron |
| Unicode 1.0 Name | Non-Spacing Macron |
| 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 0x84 |
| UTF-16 Encoding | 0x0304 |
| UTF-32 Encoding | 0x00000304 |
| C/C++/Java Escape | \u0304 |
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 | Caucasian Albanian Cherokee Coptic Cyrillic Gothic Greek Latin Osage Syriac Tifinagh Todhri |
| 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 |