!!

‼ (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 == ! (disambiguation) !!! (disambiguation)