ㅆ

Doubled ㅅ (siot)

ㅆ • (ss)

1. A digraph of hangul, the Korean alphabet.

   In North Korea, ㅆ is called 된시읏 (doensieut), "strong ㅅ (sieut)". In South Korea, it is called 쌍시옷 (ssangsiot), "doubled ㅅ (siot)".

   ㅆ is pronounced as a sibilant with tense phonation (IPA: [s͈] or [z̬]), i.e. similar to the English s, but with a stiff tongue and glottal opening.

In Dongguk Jeong'un (東國正韻), this letter was used to transcribe voiced alveolar fricative ([z]) of Middle Chinese.