Variation Selector-46

It requests a particular drawn form of the character before it.

VS46 is invisible on its own. After a Chinese, Japanese, or Korean ideograph, it can complete a registered ideographic variation sequence (IVS). The base character keeps its reading and meaning; the sequence requests a permitted glyph, or written shape. The registered pair determines which shape appears.

Why was Variation Selector-46 made?

It preserves specific ideograph shapes in plain text.

The proposal trail for ideographic selectors begins in 1997; the design developed through 2003–04. Chinese, Japanese, and Korean traditions can use different glyphs for one unified character, and a font preference alone cannot preserve the chosen form in a plain-text name, place, or historical text.

The design moved toward separately registered collections because regional and historical character inventories can conflict. The Ideographic Variation Database (IVD) records approved base-plus-selector assignments; Adobe-Japan1, a Japanese collection, was registered in 2007.

What does it mean when someone sends this invisible character?

Treat it as formatting, not a hidden message.

If it arrives alone, treat it as invisible formatting; you need not respond to it. If it follows a CJK ideograph in a name, place, or historical text, keeping the pair can preserve a specific written form. Removing the selector may leave the base character's default glyph.