Look up !, exclamation mark, exclamation point, pling, or ﹗ in Wiktionary, the free dictionary.

! is a punctuation mark, called an exclamation mark (33 in ASCII), exclamation point, ecphoneme, or bang.

! or exclamation point 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
• ! (CONFIG.SYS directive), usage for unconditional execution of directives in FreeDOS configuration files

Music

• ! (The Dismemberment Plan album), released in 1995
• ! (Donnie Vie album), released in 2016
• "!" (The Song Formerly Known As), a single on the 1997 album Unit by Regurgitator
• Exclamation Mark (album), a 2011 album by Jay Chou
• Exclamation Point, a 2010 LP by DA!
• ! (Trippie Redd album), released in 2019
  • ! (Trippie Redd song), that album's title track
• ! (Cláudia Pascoal album), released in 2020

Other

• ǃ, the IPA symbol for postalveolar click in speech
• An indicator of a good chess move in punctuation
• A dereference operator in BCPL