U with diaeresis is used in the alphabets of the Altai, Khakas, Khanty, Mari and Shor languages, where it represents the close front rounded vowel , the pronunciation of the Latin letter U with diaeresis (Ü ü) in German.
In the alphabets of the Altai, Khakas, Khanty, Mari, and Shor languages, the letter U is represented by a diaeresis (Ü ü), which corresponds to the close front rounded vowel sound in German.