What 챂 means
챂 is the hangul syllable cap. Unicode classifies it as a letter and files it in the Hangul Syllables block; this site shelves it under Chinese, Japanese & Korean.
Its appearance depends on the font and text styling.
How it is encoded
챂 is a single code point, U+CC42. In HTML that is 챂, and in CSS \CC42.
Questions people ask
1Why does 챂 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 챂
Windows (Word)
Alt+XType CC42, then Alt+X to get 챂.
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 cap”.
Linux
Ctrl+Shift+UType cc42, then Enter or Space.
HTML
챂CSS
\CC42Codes and encoding1 code points
HTML decimal
챂
HTML hex
챂
CSS content
content: "\CC42";
Each escape is closed by the next backslash; a trailing space is needed before a literal hex digit.
URL encoded
%EC%B1%82
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.