Cyrillic Capital Letter Zhe with Diaeresis at U+04DC is a Cyrillic uppercase letter formed from Zhe with a diaeresis, used as a distinct alphabetic character rather than as a decorative accent. It is part of the Cyrillic block and pairs with the lowercase Cyrillic small letter zhe with diaeresis. Its best-known everyday use is in Udmurt, a Uralic language of Russia, where Ӝ represents a separate sound in the alphabet. It appears in proper names, educational materials, dictionaries, newspapers, and official or cultural text written in Udmurt, so replacing it with plain Ж changes the spelling. The letter is also found in linguistic work about Udmurt and related Cyrillic-based orthographies, especially in alphabet charts, phonology descriptions, and transliteration discussions. In uppercase text it may appear at the start of Udmurt words or in all-capital headings; when sorting or searching, it should be treated as its own Cyrillic letter, not as Ж plus optional decoration.