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Main sound category: Diphthongs
Source vowel: o : close mid back rounded vowel
Target vowel: u : close back rounded vowel
IPA symbol: ou
IPA description: mid back rounded to close back rounded diphthong
UPSID symbol: calst_uo
UPSID description: calst_uo
Occurs in 1 language
That is in 0.20% of all languages
Occurs in: Bengali_Bangladesh