Ze with diaeresis (Ӟ ӟ; italics: Ӟ ӟ) is a letter of the Cyrillic script. It is used only in the Udmurt language,[1] where it represents the voiced alveolo-palatal affricate /d͡ʑ/. It is usually romanized as ⟨đ⟩, but its ISO 9 transliteration is ⟨z̈⟩.
It was also formerly used in the Bashkir language, where it represented the voiced dental fricative /ð/. In this function, the letter has been replaced with dhe (Ҙҙ).