The close-mid central unrounded vowel, or high-mid central unrounded vowel, is a type of vowel sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is 〈ɘ〉. This is a reversed letter e, and should not be confused with the schwa〈ə〉, which is a turned e. It was added to the IPA in 1993; before that, this vowel was transcribed 〈ë〉. This letter may be used with a lowering diacritic〈ɘ̞〉, to denote the mid central unrounded vowel.
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".
Iivonen, Antti; Harnud, Huhe (2005), "Acoustical comparison of the monophthong systems in Finnish, Mongolian and Udmurt", Journal of the International Phonetic Association35 (1): 59–71, doi:10.1017/S002510030500191X