Modifier Combining Mark - No
No is the specific value assigned to characters that do not function as modifier combining marks, meaning they are not intended to alter the pronunciation, tone, or meaning of a preceding base character by attaching diacritically or overlapping. This value applies to the vast majority of Unicode codepoints, including letters, digits, punctuation, symbols, and even other combining marks that serve different purposes, such as spacing or enclosing forms. Characters with this value are typically rendered independently, maintaining their own advance width and not forming a ligature or composite glyph with adjacent characters. In practical terms, the "No" value indicates that a character does not participate in the dynamic, stacked modification common to marks like tone dots or vowel signs in many scripts, thereby simplifying text processing and rendering logic for those codepoints.