!

Translingual

Punctuation mark

!

1. The symbol ! is a called an exclamation mark or exclamation point, the punctuation mark used to denote excitement, surprise or shock: The dam has burst, run for your lives!
2. In some computer languages, it is colloquially called a shriek.
3. In some computer languages, it means not. Example, "If !x" means "if X is not true" (Boolean).
4. When used in e-mail to represent a separator for an e-mail address, it is called a bang.
5. In mathematics, the symbol for factorial.

Derived symbols

• ¡ (inverted exclamation mark/point)
• ‼ (double exclamation mark/point)
• !? (exclamation and questioning)
• ‽ (interrobang)
• ⁈
• ⁉
• ﹗ (small exclamation mark/point)
• ❢ (dingbat)
• ❣ (dingbat)
• ！ (fullwidth)