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|40x40px||Look up exclamation mark, exclamation point, ⠖, ⠮, or ！ in Wiktionary, the free dictionary.|
! is a punctuation mark called an exclamation mark, exclamation point, ecphoneme, or bang.
! may also refer to:
Mathematics and computers
- Factorial, a mathematical function
- Derangement, a related mathematical function
- Negation, in logic and some programming languages
- Uniqueness quantification in mathematics and logic
- ! (album), a 1995 album by The Dismemberment Plan
- !!! (Chk, chk, chk), an American dance-punk band
- "! (The Song Formerly Known As)", a single on the album Unit by Regurgitator
- !, an album by house-music singer Adeva
- !, an album by R&B–gospel singer Shirley Murdock
- ǃ —the IPA symbol for postalveolar click in speech
- An indicator of a good chess move in punctuation
- A dereference operator in BCPL
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