|Native to||Papua New Guinea|
1,400 monolinguals (2001)
Mapos Buang, also known as Mapos or Central Buang, is an Oceanic language in Morobe Province, Papua New Guinea.
Mapos Buang has a larger sound inventory than is typical of most Austronesian languages. Notable is the existence of a phonemic contrast between a velar nasal and a uvular nasal, which is extremely rare among the world's languages. Along with this, its phonology is unusually symmetrical compared to most other languages.
|Mid||e(ː) ⟨ë⟩||(ə)* ⟨e⟩||o(ː)|
|Low||ɛ(ː) ⟨e⟩||a(ː)||ɔ(ː) ⟨ö⟩|
* [ə] is a prominent feature of Buang phonology, but is not contrastive. Thus both it and [e] are represented with ⟨e⟩.
Vowel length is shown in the orthography by doubling the letter.
|Nasal||m||n||ɲ ⟨ny⟩||ŋ ⟨ng⟩||ŋʷ ⟨ngw⟩||ɴ ⟨nġ⟩|
|ᵐb ⟨b⟩||ⁿd ⟨d⟩||ⁿdʒ ⟨j⟩||ᵑɡ ⟨g⟩||ᵑɡʷ ⟨gw⟩||ᶰɢ ⟨ġ⟩|
|p||t||tʃ ⟨s⟩||k||kʷ ⟨kw⟩||q ⟨ḳ⟩|
|Continuant||β ⟨v⟩||l̪ ⟨l⟩||j ⟨y⟩||ɣ ⟨gg⟩||w*||ʁ ⟨h⟩|
*/w/ is a bilabial approximant or semivowel with no co-articulated velar component. It is placed in the labio-velar series of the chart as it fills a gap in this position. /β/ is a voiced bilabial fricative.
Orthography is the same as in the IPA when nothing is shown.