ㅙ is one of the Korean

hangul The Korean alphabet, known as Hangul, . Hangul may also be written as following South Korea's standard Romanization. ( ) in South Korea and Chosŏn'gŭl in North Korea, is the modern official writing system for the Korean language. The le ...

. The Unicode for ㅙ is U+3159. This compound vowel is ㅗ + ㅐ. To pronounce this vowel, shape your mouth to make the ㅗ sound. Then start to say the ㅗ sound and while quickly saying the ㅐ sound. The resulting sound is ㅙ (wae) as in ‘wedding’.

References

Hangul jamo Vowel letters {{Korea-stub