Close central compressed vowel

The close central compressed vowel is a type of vowel sound, used in some spoken languages. There is no symbol in the International Phonetic Alphabet that represents this sound.

Features

Its vowel height is close, which means the tongue is positioned as close as possible to the roof of the mouth without creating a constriction that would be classified as a consonant.
Its vowel backness is central, which means the tongue is positioned halfway between a front vowel and a back vowel.
Its vowel roundedness is compressed, which means the corners of the mouth are drawn slightly together and the lips may be compressed horizontally, but do not protrude.

There is no official diacritic for compression. An old diacritic for labialization, [ ̫], will be used here as an ad hoc symbol.

This vowel is typically transcribed as [ʉ]. It also occurs in some dialects of Swedish, but see also close front compressed vowel. The back vowels of Norwegian and Swedish are also compressed. See close back compressed vowel.