The close front rounded vowel, or high front rounded vowel, is a type of vowel sound, used in some spoken languages. Acoustically it is a close front-central rounded vowel. The symbol in the International Phonetic Alphabet that represents this sound is ⟨y⟩, and the equivalent X-SAMPA symbol is y. Across many languages, it is most commonly represented orthographically as ⟨ü⟩ (in German, Turkish and Basque) or ⟨y⟩, but also as ⟨u⟩ (in French and a few other Romance languages and also in Dutch); ⟨iu⟩/⟨yu⟩ (in the romanization of various Asian languages); ⟨ű⟩ (in Hungarian for the long duration version; the short version is the ⟨ü⟩ found in other European alphabets); or ⟨уь⟩ (in Cyrillic-based writing systems such as that for Chechen)