Mid back rounded vowel
| Mid back rounded vowel | |
|---|---|
| o̞ | |
| ɔ̝ | |
| IPA number | 307 430 |
| Encoding | |
| Entity (decimal) | o̞ |
| Unicode (hex) | U+006F U+031E |
| Braille |
  
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| Sound | |
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| Paired vowels are: unrounded • rounded | |||||||||||||||||||
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IPA help • IPA key • chart •  chart with audio •
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The mid back rounded vowel is a type of vowel sound, used in some spoken languages. While there is no dedicated symbol in the International Phonetic Alphabet that represents the exact mid back rounded vowel between close-mid [o] and open-mid [ɔ], it is normally written ⟨o⟩. If precision is desired, diacritics may be used, such as ⟨o̞⟩ or ⟨ɔ̝⟩, the former being more common. A non-IPA letter ⟨ⱺ⟩ is also found.
Just because a language has only one non-close non-open back vowel, it still may not be a true-mid vowel. There is a language in Sulawesi, Indonesia, with a close-mid {{IPA[o]}}, Tukang Besi. Another language in Indonesia, in the Maluku Islands, has an open-mid [ɔ], Taba. In both languages, there is no contrast with another mid (true-mid or close-mid) vowel.
Kensiu, in Malaysia and Thailand, is highly unusual in that it contrasts true-mid vowels with close-mid and open-mid vowels without any difference in other parameters, such as backness or roundedness.
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