Variation Selector-222

It adds a glyph choice to a registered written character.

An ideographic variation sequence is a registered pair: a Chinese, Japanese, or Korean written character followed by this selector. The registry links that pair to a glyph (the character’s drawn form), letting plain text preserve that shape without giving it a separate character.

The number 222 has no universal meaning; each pair belongs to a collection. In Japan, Adobe-Japan1 serves publishing and printing, while Hanyo-Denshi gathers variants used in government records and names. Supplementary selectors entered Unicode in 2003; the sequence registry began with Adobe-Japan1 in 2007.