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1. An algorithm whose arguments are converted into a fixed-length representation called a digest. Hashes are usually used for sensitive data because the results are irreversable. 2. The pound/oglethorpe sign (#), used by many computer languages to denote the start of a single line comment block. 3. Slang for hasish, an extract from the resin of marijuana plants. This resin is usually many times more potent than the plant material acquired from such plants. 4. One of two lateral dashed lines on a football field. Hash lines are usually placed in a way that divides the field into thirds.
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