::Exclamation mark


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The exclamation mark (British English) or exclamation point (American English) is a punctuation mark usually used after an interjection or exclamation to indicate strong feelings or high volume (shouting), and often marks the end of a sentence. Example: “Watch out!” Similarly, a bare exclamation mark (with nothing before or after) is often used in warning signs.

The mark can also be used at the beginning of a word instead of at the end. For example, several computer languages use "!" for logical negation; e.g. "!A" means "the logical negation of A", also called "not A". There are many other specialized uses of this mark, such as in mathematics where it denotes the factorial operation.

Exclamation mark sections
Intro  History  Slang and other names for the exclamation mark   Languages   Proper names  Warnings  Unicode  Use in various fields  See also  References  External links  

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