What 잆 means
잆 combines three Hangul letter parts into one syllable block.
Jamo are Hangul's component letters: ㅇ is the starting consonant, silent here; ㅣ is the vowel; and ㅄ is the final pair, ㅂ + ㅅ. Unicode stores the assembled syllable as one block.
Hangul was designed to write Korean speech and broaden access beyond Chinese-character literacy. Its design was completed in 1443; the explanatory book Hunminjeongeum appeared in 1446. Hunminjeongeum and Eonmun are older names associated with the script, not meanings of 잆.
For tone, read the Korean text around the block.
Questions people ask
1Why does 잆 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 잆
잆\C786Codes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.
