U+339C SQUARE MM

The Unicode character U+339C, officially named SQUARE MM, was introduced in Unicode version 1.1. It is part of the CJK Compat block, which belongs to the Basic Multilingual plane. Previously, it was also referred to as SQUARED MM.

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