Syllable

ōu

Advanced Level(Band 7-9)

Pinyin

Initial Consonant

Vowel(Simple or Compound)

ou

Tones

1( ou1)

Characters(Tone 1)
1

ōu

2

ōu

Characters(All Tones)
1

ōu

2

ōu

3

ǒu

4

ǒu