ㅅ

• IPA^(key): /s/
• Actual realisation:

  (between vowels) IPA^(key): [s]

  (before /i/ or /j/) IPA^(key): [ɕ]

  (before stops, or word-finally) IPA^(key): [t̚]

  (before nasals) IPA^(key): [n]

• Audio

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The traditional account[1] holds that its form is the outline of an incisor, 齒形 (it is the shape of the four teeth in the Chinese pictographic character for incisor, 齒).

Gari Ledyard proposes that ㅅ (s) was derived from ㅈ (j) by removing the top stroke.

ㅅ • (s)

1. 시옷 (siot, “siot”), a jamo (letter) of the alphabet of the Korean writing system, hangeul; the sibilant phoneme (/s/)

In the North Korean order, ㅅ (s) is the seventh jamo, and in the South Korean order the tenth.

• ㅈ (j) (in traditional account)
• ㅊ (ch)

Coordinate terms

• ㄷ (d), ㄴ (n)

From Middle Korean *ㅅ (“'s, of”), from Old Korean *叱 (“'s, of”).

-ㅅ- • (-s-)

1. The sai-siot (사이시옷), genitive marker sometimes placed between a vowel-final syllable of the first constituent and a syllable of the second constituent when forming compounds.

   햇빛 (haetbit, “sunlight”) - from 해 (hae, “sun”) + ㅅ + 빛 (bit, “light”)

   고춧가루 (gochutgaru, “chili pepper flakes”) - from 고추 (gochu, “chili pepper”) + ㅅ + 가루 (garu, “powder, flour”)

   어젯밤 (eojetbam, “last night”) - from 어제 (eoje, “yesterday”) + ㅅ + 밤 (bam, “night”)

   나뭇잎 (namunnip, “tree leaf”) - from 나무 (namu, “tree”) + ㅅ + 잎 (ip, “leaf”)