‼ (a double exclamation mark, Unicode character U+203C) may refer to: *

!! (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 intern ...

, a brilliant move in chess annotation *

Double factorial In mathematics, the double factorial or semifactorial of a number , denoted by , is the product of all the integers from 1 up to that have the same parity (odd or even) as . That is, :n!! = \prod_^ (n-2k) = n (n-2) (n-4) \cdots. For even , the ...

, 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