Canonical Combining Class - Attached Below

Attached Below is a numeric value indicating that a character sits directly beneath its base character in a composed text sequence, with no intervening spacing. This classification is used to guide reordering during normalization, ensuring that combining marks are placed in a consistent order relative to other diacritics. When a character has this value, it typically represents a mark like a subscript, a below-base vowel sign, or a ligature component that visually attaches underneath the preceding letter. The specific number assigned, rather than being zero, signals a meaningful positional relationship, and it influences how software processes text for storage, comparison, and display, particularly when multiple combining characters stack vertically.