ID Continue - No
No is the classification for characters that are explicitly disallowed from continuing an identifier in programming languages and text processing systems. This includes most punctuation, symbols, whitespace, and control characters, such as spaces, periods, commas, plus signs, and invisible formatting codes. These characters cannot appear after the first character of a variable name, function name, or other user-defined token, because they would break the lexical grammar or create ambiguity. However, some visually similar characters, like certain mathematical operators or emoji, may also fall into this category even if they appear letterlike, as they lack the required combining or alphanumeric properties. Essentially, "No" marks the boundary of valid identifier continuation, ensuring that only letters, digits, underscores, and specific combining marks can extend a name. This prevents syntax errors and maintains clarity in code parsing.