Table 2. Vowel inventory of NK
End of tongue tip
Front
Center
Back
Roundness
Flat
Flat
Round
Flat
Flat
Round
High
[i]
[e]
[y]
[ɯ]
[ʌ]
[u]
Low
[æ]
[ø]
[a]
[o]
NK, North Korean.