Halfwidth Hangul Letter Ya

It is a narrow compatibility form of the Korean vowel ㅑ.

It is an encoding form of an existing Hangul vowel, not a new sound or letter. The supplied historical account traces the jamo scheme to the 1974 KS C 5601 standard, which assigned 51 basic Hangul elements, called jamo, to a compact 7-bit N-byte code. Later editions moved that scheme into annex material.

Unicode kept halfwidth Hangul forms for compatibility when converting older mixed-width text. The history is distinct from halfwidth katakana, even though the forms sit in the same Unicode block. The vowel remains ㅑ; the difference is its encoded width and compatibility role. Korean writing normally uses syllable blocks, either as precomposed syllables or assembled from jamo.

How do I type halfwidth ya?

Use Unicode code-point input; Korean keyboards do not normally offer it.

If your editor supports Unicode entry, enter U+FFC4. In HTML, use ￄ; in a CSS string, use \FFC4. Check that the font you use supports the character.

For ordinary Korean writing, type ㅑ or a complete Hangul syllable instead. Keep the halfwidth form when a legacy text stream or a width-sensitive test requires that exact encoding.

Why does halfwidth ya look like ㅑ?

A font may draw it with the same glyph as ㅑ.

In Source Han Sans v2.000, halfwidth jamo map to glyphs from the Hangul Compatibility Jamo block, so the display can look like ㅑ even though the encoded character is different. A font without coverage may show a missing-glyph box.

Normalization can also remove the width distinction: compatibility conversion yields ㅑ, while NFKC yields the conjoining vowel ᅣ, a Hangul element used to build syllables. If software must preserve the halfwidth encoding, check whether its normalization step changes the character.