Phonology
The phonology of Niuafoʻou is similar to that of Tongan, with twelve consonants and five vowel phonemes. Vowels are more centralized when unstressed. and are de-voiced under some conditions. Sometimes the phoneme /t/ is realized as a apico- alveolar flap (/ɾ/). /h/ is only realized as /h/ at the beginning of words. In the middle of words, it is either /ɦ/ or /x/.Syllable structure
Niuafoʻou has a very simple syllable structure, (C)V. However, it is apparently transitioning towards allowing consonant clusters, due to the influence of foreign languages and the de-voicing of vowels.References
Languages of Tonga Tongic languages Endangered Austronesian languages {{Tonga-stub