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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: n/e
UPSID description: n/e
Occurs in 1 language
That is in 0.21% of all languages
Occurs in: Catalan (Central)