U+2BBC "⮼" Overlapping Black Squares Unicode Character

U+2BBC "⮼" Overlapping Black Squares is a typographic symbol within the Miscellaneous Symbols and Arrows block, depicting two solid black squares that overlap to form a compact, nearly cross-like or plus-like shape depending on the font rendering. It is rarely used in standard text but may serve as a geometric ornament, a visual marker in diagrams, or a placeholder in abstract notation systems. The design consists of two identical square forms offset diagonally, creating an illusion of depth or layering while remaining entirely filled in a single ink tone.