U+1CC8F "𜲏" Inverse Black Small Square Unicode Character

U+1CC8F "𜲏" Inverse Black Small Square is a symbol from the Supplementary Multilingual Plane, specifically found in the "Sutton SignWriting" block, which is used to represent the visual aspects of sign language in written form. This character depicts a small, solid black square that has been inverted, meaning its interior is empty or white against a dark background, and it functions as a building block for composing more complex sign language symbols indicating hand shapes, movements, or facial expressions. While its specific use depends on the surrounding characters in a SignWriting string, it generally serves to denote a compact, neutral or specific hand configuration within the notation system.