!

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The Universal Character Set
Bang.svg
Unicode name EXCLAMATION MARK
Basic Latin U+0021
See also ǃ, and ¡

Contents

[edit] Translingual

[edit] Etymology

May derive from a Latin Io, with the I written over the o, placed at the end of an exclamation to mark it as such. The Io may either be an abbreviation for interiectiō (“‘interjection’”), or else the interjection Iō (“‘hey!’”).[1]

[edit] Symbol

!

  1. Denoting excitement, surprise or shock.
    Run for your lives!
  2. (computing, in many programming languages) A Boolean negation, the not operator, serving to invert the truth value of what follows.
  3. (computing, e-mail) Formerly used as a separator between hostnames in an e-mail address for the purpose of routing a message (called bang path notation).
  4. (computing, IRC) Used as a separator between a user's nickname and ident.
  5. (mathematics) factorial
    5! = 5 × 4 × 3 × 2 × 1
    "five factorial equals…"
  6. (chess) a good move

[edit] Translations

chess

[edit] Usage notes

[edit] Derived symbols

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

[edit] Related symbols

Punctuation

( ( ) ) ( [ ] ) ( { } ) ( ⟨ ⟩ )

[edit] Translations

[edit] References

  • Notes:
  1. ^ Alexander Humez, 1987, A B C et cetera: the life & times of the Roman alphabet
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