Crack
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Crack can refer to:
- Freebase cocaine
- The chemical process of cracking
- Software cracking
- Craic (pronounced like "crack"), an Irish slang term for fun.
- A failure mode in material science, metallurgy and mechanical engineering
- A Cumbrian (and elsewhere throughout the North of the United Kingdom) term for 'a meaningful chat'
- The illegal access of a computer system without authorization made by a black-hat hacker
- The value difference between a crude oil & oil products (usually per barrel) or different oil products, for instance a mogas crack - the difference between mogas & crude oil
- A vocal crack is an obvious switch in vocal registration cause by the singer's vocal apparatus's inability to handle the vocal tension required in maintaining a given pitch while simultaneously changing vocal dynamic.
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