What 댆 means
It is one Hangul syllable block built from three jamo (letters).
They are ᄃ, ᅢ, and ᆭ: initial consonant, vowel, and final cluster.
A 2009 paper argues that Phags-pa, a Mongolian script, influenced Hangul’s vowel design; this is not a claim about this syllable’s ancestry.
Don't confuse it with
1Questions people ask
1Why does 댆 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 댆
Windows (Word)
Alt+XType B306, then Alt+X to get 댆.
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 daenh”.
Linux
Ctrl+Shift+UType b306, then Enter or Space.
HTML
댆CSS
\B306Korean IME
With Korean input on a standard two-set layout, type e, o, s, g to form 댆.
Conjoining jamo
ᄃ + ᅢ + ᆭ may display separately if the app or font lacks shaping support.
Codes and encoding1 code points
HTML decimal
댆
HTML hex
댆
CSS content
content: "\B306";
Each escape is closed by the next backslash; a trailing space is needed before a literal hex digit.
URL encoded
%EB%8C%86
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.