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Dzubukuá (Dzubucua), or Kiriri, is an extinct Karirian language of Brazil. It is sometimes considered a dialect of a single Kariri language. A short grammatical description is available.
Vowel sounds are presented as and which is written out as a double vowel oe. Nasal vowels are pronounced as along with nasalized double vowels oê and aê, not pronounced as diphthongs, but as nasalized monophthongs .