U+00A8 DIAERESIS

The Unicode character U+00A8, officially named DIAERESIS, was introduced in Unicode version 1.1. It is part of the Latin 1 Sup block, which belongs to the Basic Multilingual plane. Previously, it was also referred to as SPACING DIAERESIS.

Categorized technically as a Modifier Symbol, this character typically falls under the Common script. In terms of text layout and rendering, the glyph is a compatibility composition and has ambiguous in East Asian typography. When placed in bidirectional text, it behaves as an Other Neutral character. Its visual representation remains not mirrored regardless of the reading direction.