diphthongisation

Noun

 * 1) The process by which a single vowel sound (monophthong) shifts to a two-vowel vocalization (diphthong).

Translations

 * Catalan:
 * Finnish:, diftongoituminen
 * French:
 * Greek: διφθογγισμός
 * Italian: dittongazione
 * Japanese: 二重母音化
 * Serbo-Croatian:
 * Cyrillic: дифтонгиза́ција
 * Roman:
 * Swedish: diftongering