Near-close Near-back Vowel

The near-close near-back vowel, or near-high near-back vowel, is a type of vowel sound, used in some vocal languages. The IPA symbol for the near-close near-back rounded vowel is ⟨ʊ⟩. It derives from a small capital U. It is informally called "horseshoe u". Prior to 1989, there was an alternate IPA symbol for this sound, ⟨ɷ⟩, called "closed omega". Use of this symbol is no longer sanctioned by the IPA. In Americanist phonetic notation, the symbol ⟨ᴜ⟩ (a small capital U) is used.

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", and these are the only terms found in introductory textbooks on phonetics such as those by Peter Ladefoged.

Some languages may have a near-close near-back unrounded vowel, which can be represented with ⟨ɯ̽⟩ or ⟨ʊ̜⟩ in the IPA.

Read more about Near-close Near-back Vowel:  Features, Occurrence

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