Hangul Syllable Sswes

By itself, 쒯 has no word meaning; it spells one Korean syllable.

In the Hangul block, ㅆ is the starting consonant, ㅞ the vowel, and ㅅ the ending consonant. Those parts show how to spell the syllable; a Korean word containing it supplies the word's meaning.

The 28 Hangul letters were devised under King Sejong in 1443 to make Korean easier to write than with Chinese characters; an explanatory book, Hunminjeongeum, appeared in 1446. Earlier systems such as Idu, Gugyeol and Hyangchal used Chinese characters to write Korean. Hangul later spread through Buddhist and Confucian books, letters, novels and practical print, then became Korea's official writing system in 1894.

Someone sent me 쒯—what does it mean?

On its own, it gives you no message to decode.

Inside a Korean word, it spells one syllable and the word around it carries the meaning. If someone sends only this block, ask what word or spelling they intended; the character alone does not tell you their intent.