What 츩 means
It is an older spelling of 칡, the Korean word for kudzu. The Korean alphabet was created in 1443; the explanatory book 《훈민정음》 appeared in 1446.
A Korean text from 1466, 《구급방언해》, uses 츩 for the plant. After ㅊ, the older vowel ㅡ shifted toward ㅣ beginning in the 19th century; this change became widespread later that century. 츩 and 칡 are older and modern spellings of the same word.
Questions people ask
1Why does 츩 show as a box on some devices?
Because that device's fonts have no glyph for it. The character is still correct and still copies correctly — the box is a missing glyph, not a broken character.
How to type 츩
Windows (Word)
Alt+XType CE29, then Alt+X to get 츩.
Windows
Win+Rrun charmap for the full table, or use the emoji picker's Ω symbols tab (Win + .).
macOS
Control+Command+SpaceOpen the character viewer and search “hangul syllable ceulg”.
Linux
Ctrl+Shift+UType ce29, then Enter or Space.
HTML
츩CSS
\CE29Korean keyboard (IME)
With Korean input enabled, type ㅊ, ㅡ, ㄹ, then ㄱ. The input method joins final ㄹ+ㄱ as ㄺ and forms 츩.
Codes and encoding1 code points
HTML decimal
츩
HTML hex
츩
CSS content
content: "\CE29";
Each escape is closed by the next backslash; a trailing space is needed before a literal hex digit.
URL encoded
%EC%B8%A9
1
On screen
1
Code points
1
JS .length
3
UTF-8 bytes
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.