Select languages to compare:

Main sound category: Diphthongs
Source vowel: i : close front unrounded vowel
Target vowel: a : open front unrounded vowel
IPA symbol: ia
IPA description: close front unrounded to open front unrounded diphthong
UPSID symbol: calst_ia
UPSID description: calst_ia
Occurs in 2 languages
That is in 0.41% of all languages
Occurs in: Catalan (Central) Thai