“#”, ASCII character 35.
Common names: number sign; pound; pound sign; hash; sharp; crunch; hex; INTERCAL: mesh. Rare: grid; crosshatch; octothorpe; flash; ITU-T: square, pig-pen; tictactoe; scratchmark; thud; thump; splat.
The pronunciation of “#” as “pound” is common in the US but a bad idea; Commonwealth Hackish has its own, rather more apposite use of “pound sign” (confusingly, on British keyboards the pound graphic happens to replace “#”; thus Britishers sometimes call “#” on a US-ASCII keyboard “pound”, compounding the American error). The US usage derives from an old-fashioned commercial practice of using a “#” suffix to tag pound weights on bills of lading. The character is usually pronounced “hash” outside the US.
The name “octothorpe” was made up by a Bell Labs supervisor, Don Macpherson.
Octothorpe story (http://sigtel.com/tel_tech_octothorpe.html).
- Hash coding
programming, algorithm (Or “hashing”) A scheme for providing rapid access to data items which are distinguished by some key. Each data item to be stored is associated with a key, e.g. the name of a person. A hash function is applied to the item’s key and the resulting hash value is used as an index […]
- Hash collision
programming (Or “hash clash”) When two different keys hash to the same value, i.e. to the same location in a hash table. ESR once asked a friend what he expected Berkeley to be like. The friend replied, “Well, I have this mental picture of naked women throwing Molotov cocktails, but I think that’s just a […]
[hash-eesh, -ish, ha-sheesh, hah-] /ˈhæʃ iʃ, -ɪʃ, hæˈʃiʃ, hɑ-/ noun 1. the flowering tops and leaves of Indian hemp smoked, chewed, or drunk as a narcotic and intoxicant. 2. the dried resinous exudate of the flowering tops of this plant, containing larger amounts of the active ingredient. /ˈhæʃiːʃ; -ɪʃ/ noun 1. a purified resinous extract […]
/hɑˈʃɛm/ noun 1. (Judaism) a periphrastic way of referring to God in contexts other than prayer, scriptural reading, etc because the name itself is considered too holy for such use