exclamation mark

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exclamation point

An exclamation point or exclamation mark ( ! ) is a punctuation mark commonly used to express strong, intense emotions in declarations. It can also be used to add emphasis to interjections and commands.
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exclamation mark

(character)
The character "!" with ASCII code 33.

Common names: bang; pling; excl (/eks'kl/); shriek; ITU-T: exclamation mark, exclamation point (US). Rare: factorial; exclam; smash; cuss; boing; yell; wow; hey; wham; eureka; soldier; INTERCAL: spark-spot.

The Commonwealth Hackish, "pling", is common among Acorn Archimedes owners. Bang is more common in the USA.

The occasional CMU usage, "shriek", is also used by APL fans and mathematicians, especially category theorists.

Exclamation mark is used in C and elsewhere as the logical negation operation (NOT).