Vowel inventory
| Front | Central | Back | |
|---|---|---|---|
| Close | i, i: | ʉ, ʉ: | u, u: |
| Mid | e, e: | o, o: | |
| Open | a, a: |
Áonak has a simple tone system where low tones are left unmarked and high tones are marked with an acute (á).
| Front | Central | Back | |
|---|---|---|---|
| Close | i, i: | ʉ, ʉ: | u, u: |
| Mid | e, e: | o, o: | |
| Open | a, a: |
Áonak has a simple tone system where low tones are left unmarked and high tones are marked with an acute (á).