0 two vowel sounds pronounced as one syllable -- nguyên âm đôi
Contrary to commonly held opinions, they find that not all speakers pronounce diphthongs with a hiatus word-initially.
What is interesting to explore, however, is how bilinguals who have received less than a year of formal literacy instruction produce and analyze such diphthongs.
The realization of 0ay0 before a nasal or a liquid often occurs as an ingliding diphthong instead.
Thus, the current results indicate that the traditional realization of this diphthong has decreased considerably among younger speakers. 12.
These results appear to indicate that the diphthongs are no longer stigmatized for the younger generation and hence no longer a social marker.
More northern areas retained the original monophthong, while in the south it became a diphthong.
Whether a given lexical item contains a diphthong or a heterosyllabic sequence is generally predictable from etymological considerations.
Given the left-headedness of branching constituents, it is the first portion of a target diphthong that would be expected to survive shortening.