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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''.〔Geoff Lindsey (2013) (The vowel space ), Speech Talk〕 The symbol in the International Phonetic Alphabet that represents this sound is , and the equivalent X-SAMPA symbol is y. Across many languages, it is most commonly represented orthographically as (in German, Turkish and Basque) or , but also as (in French and a few other Romance languages); / (in the romanization of various Asian languages); (in Hungarian for the long duration version; the short version is the found in other European alphabets); or (in Cyrillic-based writing systems such as that for Chechen) Short and long occurred in pre-Modern Greek. In the Attic and Ionic dialects of Ancient Greek, front developed by fronting from back around the 6th to 7th century BC. A little later, the diphthong when not before another vowel monophthongized and merged with long . In Koine Greek, the diphthong changed to , likely through the intermediate stages and . Through vowel shortening in Koine Greek, long merged with short . Later, unrounded to , yielding the pronunciation of Modern Greek. For more information, see the articles on Ancient Greek and Koine Greek phonology. The close front rounded vowel is the vocalic equivalent of the labialized palatal approximant . The two are almost identical featurally. alternates with in certain languages, such as French, and in the diphthongs of some languages, with the non-syllabic diacritic and are used in different transcription systems to represent the same sound. The IPA prefers terms "close" and "open" for vowels, and the name of the article follows this. However, a large number of linguists, perhaps a majority, prefer the terms "high" and "low". In most languages, this rounded vowel is pronounced with compressed lips ('exolabial'). However, in a few cases the lips are protruded ('endolabial'). ==Close front compressed vowel== 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Close front rounded vowel」の詳細全文を読む スポンサード リンク
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