Other Alphabetic - No

No is a designation indicating that a character does not possess alphabetic traits beyond the standard definition, meaning it is not treated as an alphabetic letter for linguistic or text processing purposes. This includes punctuation, symbols, digits, and most whitespace, as well as non-alphabetic scripts like emoji or mathematical operators. Characters marked with “No” are excluded from patterns that match alphabetic characters, such as word boundaries or regex classes, unless explicitly specified. The value simply signals the absence of an alphabetic nature, without implying any other functional category or grouping. It applies uniformly to all such non-letter forms, ensuring consistent behavior across systems. This classification helps distinguish true letters from other glyphs, though it does not alter a character’s primary semantic role or its suitability for other uses, like formatting or ideographic representation.