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Main sound category: Diphthongs
Source vowel: i : close front unrounded vowel
Target vowel: u : close back rounded vowel
IPA symbol: iu
IPA description: close front unrounded to close back rounded diphthong
UPSID symbol: iu
UPSID description: high front unrounded to high back rounded diphthong
Occurs in 3 languages
That is in 0.63% of all languages
Occurs in: Acoma Parauk Spanish (Castilian)