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Main sound category: Diphthongs
Source vowel: i : close front unrounded vowel
Target vowel: o̞ : mid back rounded vowel
IPA symbol: io̞
IPA description: close front unrounded to mid back rounded diphthong
UPSID symbol: io
UPSID description: high front unrounded to mid back rounded diphthong
Occurs in 2 languages
That is in 0.42% of all languages
Occurs in: Parauk Spanish (Castilian)