!! (other)
‼ (a double exclamation mark, Unicode character U+203C) may refer to: * !! (chess), a brilliant move in chess annotation * Double factorial, an operator in mathematics * Retroflex click, a family of click consonants found only in Juu and Namibian languages, and in the Damin ritual jargon * Double-negation translation, !!''p'' = ''p''. See also * ! (other) * !!! (other) !!! is a dance-punk band formed in 1996. !!! may also refer to: * ''!!!'' (album), the debut album by the band !!! * A tour cassette produced by the band !!! * Exclamation mark The exclamation mark (also known as exclamation point in Amer ...

Exclamation Mark
The exclamation mark (also known as exclamation point in American English) is a punctuation mark usually used after an interjection or exclamation to indicate strong feelings or to show wikt:emphasis, emphasis. The exclamation mark often marks the end of a sentence, for example: "Watch out!". Similarly, a bare exclamation mark (with nothing before or after) is frequently used in warning signs. Additionally, the exclamation mark is commonly used in writing to make a character seem as though they are shouting, excited, or surprised. Other uses include: * In mathematics, it denotes the factorial operation. * Several computer languages use at the beginning of an expression (computer science), expression to denote logical negation. For example, means "the logical negation of A", also called "not A". This usage has spread to ordinary language (e.g., "!clue" means no-clue or clueless). * Some languages use ǃ, a symbol that looks like an exclamation mark, to denote a click consonant. ...
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General Punctuation (Unicode Block)
General Punctuation is a Unicode block containing punctuation, spacing (typography) (other), spacing, and formatting characters for use with all scripts and writing systems. Included are the defined-width Space (punctuation), spaces, joining formats, directional formats, smart quotes, archaic and novel punctuation such as the interrobang, and invisible mathematical operators. Additional punctuation characters are in the Supplemental Punctuation block and sprinkled in dozens of other Unicode blocks. Block Several characters in this block are usually not rendered with a directly visible glyph. Ten whitespace characters—U+2002 through U+200B (fixed ''en'' or ''1⁄2 em'', ''em'', ''1⁄3 em'', ''1⁄4 em'', ''1⁄6 em'', ''figure'' and ''punctuation space'', variable ''thin'' or ''1⁄5 em'' and ''hair space'', fixed ''zero-width space'')—and U+205F (''math medium'' or ''2⁄9 em space'') differ by horizontal width, while U+2000 and U+2001 (''en'' and ''em quad'') ar ...
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!! (chess)
When annotating chess games, commentators frequently use widely recognized annotation symbols. Question marks and exclamation points that denote a move as bad or good are ubiquitous in chess literature. Some publications intended for an international audience, such as the ''Chess Informant'', have a wide range of additional symbols that transcend language barriers. The common symbols for evaluating the merits of a move are "??", "?", "?!", "!?", "!", and "!!". The chosen symbol is appended to the text describing the move (e.g. Re7? or Kh1!?); see Algebraic chess notation. Use of these annotation symbols is subjective, as different annotators use the same symbols differently or for a different reason. Evaluation symbols Moves Move evaluation symbols, by decreasing severity or increasing effectiveness of the move: ?? (Blunder) The double question mark "??" indicates a blunder, a critically bad mistake. Typical moves that receive double question marks are those that ...
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