U+0551 "Ց" Armenian Capital Letter Co Unicode Character
Unicode Version 17.0
Ց
U+0551 "Ց" Armenian Capital Letter Co is the uppercase form of the thirty-third letter in the Armenian alphabet, representing the voiceless aspirated affricate sound [tsʰ] in Eastern Armenian and a similar affricate in Western Armenian. This letter, known as "Co" (or "Tsō" in traditional transliteration), is a standard component of the classical and reformed Armenian scripts, appearing in historical manuscripts, modern printed texts, and digital typography to transcribe words like "ձի" (tsi, meaning horse) or foreign borrowings that include the /ts/ sound. As part of the Armenian block in Unicode, it is used for writing the Armenian language alongside its lowercase counterpart "ց", which was encoded as U+0581.
General Properties
| Code Point | U+0551 |
| Version Added | 1.1 |
| Name | Armenian Capital Letter Co |
| Block | Armenian |
| General Category | Uppercase Letter |
| Canonical Combining Class | Not Reordered |
| Bidirectional Class | Left To Right |
Encodings
| HTML Decimal Encoding | Ց |
| HTML Hex Encoding | Ց |
| UTF-8 Encoding | 0xD5 0x91 |
| UTF-16 Encoding | 0x0551 |
| UTF-32 Encoding | 0x00000551 |
| C/C++/Java Escape | \u0551 |
Unicode Properties
| NFC Quick Check | Yes |
| NFD Quick Check | Yes |
| NFKC Quick Check | Yes |
| NFKD Quick Check | Yes |
| Numeric Type | None |
| Numeric Value | NaN |
| Line Break | Alphabetic |
| Uppercase | Yes |
| Simple Lowercase Code Point | "ց" U+0581 Armenian Small Letter Co |
| Lowercase Code Point | "ց" U+0581 Armenian Small Letter Co |
| Simple Case Folding | "ց" U+0581 Armenian Small Letter Co |
| Case Folding | "ց" U+0581 Armenian Small Letter Co |
| Cased | Yes |
| Changes When Casefolded | Yes |
| Changes When Casemapped | Yes |
| Changes When Lowercased | Yes |
| Changes When NFKC Casefolded | Yes |
| NFKC Casefold | "ց" U+0581 Armenian Small Letter Co |
| NFKC Simple Casefold | "ց" U+0581 Armenian Small Letter Co |
| Script | Armenian |
| Script Extensions | Armenian |
| 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 |