U+10A78 OLD SOUTH ARABIAN LETTER ZAYN

The Unicode character U+10A78, officially named OLD SOUTH ARABIAN LETTER ZAYN, was introduced in Unicode version 5.2. It is part of the Old South Arabian block, which belongs to the Supplementary Multilingual plane.

Categorized technically as a Other Letter, this character typically falls under the Sarb script. In terms of text layout and rendering, the glyph is not a composition and has no designated width in East Asian typography. When placed in bidirectional text, it behaves as an Right-To-Left character. Its visual representation remains not mirrored regardless of the reading direction.