What ￔ means
It represents the Hangul vowel ㅝ in a legacy narrow-width encoding.
The difference between ￔ and ㅝ is an encoding and display-width distinction, not a different Korean vowel. This narrow form belongs to older mixed-width text systems.
The broader Korean computer-encoding effort reaches back to 1974, when KS C 5601 addressed competing byte schemes and the delimiter and memory costs they created. The exact history of the narrow arrangement is less certain: a 2017 Unicode proposal traced it through an Annex 4 lineage and associated it with KS C 5601 and KS X 1001 material from 1987 onward. It said the precise source was not well known and noted a similar Xerox Character Code Standard set. Unicode kept the relationship for round-trip conversion, not to introduce a new written vowel.
How is ￔ related to ㅝ and ᅯ?
They represent related forms of the same Hangul vowel.
The ordinary spacing form ㅝ is the compatibility form associated with ￔ. The conjoining form ᅯ is used when Hangul syllables are composed. ￔ carries an additional legacy width distinction for older text conversion.
How do I type ￔ?
In source text, enter its Unicode escape, \uFFD4.
Use that escape when a legacy file, test fixture, or code-point-preserving conversion needs this exact form.
Technical and archival: this form serves compatibility data, tests, and exact-width preservation; ordinary Korean writing uses other Hangul forms.
Without a supporting font, it can look like a missing-glyph box.
Don't confuse it with
4Questions people ask
2Why does ￔ show as a square?
A font may not include this character, so the device displays a missing-glyph box. That changes how it looks, not which character is encoded.
Does NFKC preserve ￔ?
No. Compatibility normalization can fold it into conjoining Hangul data and remove its width-specific code point. Keep the original string when that distinction matters.
How to type ￔ
ￔ\FFD4Codes and encoding1 code points
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.