Typological characteristics Phonology. The Austronesian languages overall possess phoneme inventories which are smaller than the world average. Around 90% of the Austronesian languages have inventories of 19–25 sounds (15–20 consonants and 4–5 vowels), thus lying at the lower end of the global typical range of 20–37 sounds.
Austronesian may refer to: . The Austronesian languages; The historical Austronesian peoples who carried Austronesian languages on their migrations