Wolio is an Austronesian language spoken in and around Baubau on Buton Island, Southeast Sulawesi, Indonesia.
Today it is an official regional language; street signs are written in the Buri Wolio alphabet, based on the Arabic script.
Wolio has lexical borrowings from Malay, Arabic, and Dutch.
[4] Local languages of eastern Indonesia, such as Bugis, Makasar, and Ternate, have also been influential.
The consonant system is characterized by the presence of prenasalized stops, which are treated as a single sound in Wolio.