Editing Code (section)

==Codes and acronyms==
[[Acronym]]s and abbreviations can be considered codes, and in a sense, all [[language]]s and [[writing system]]s are codes for human thought.

[[International Air Transport Association airport code]]s are three-letter codes used to designate airports and used for [[bag tag]]s. [[Station code]]s are similarly used on railways but are usually national, so the same code can be used for different stations if they are in different countries.

Occasionally, a code word achieves an independent existence (and meaning) while the original equivalent phrase is forgotten or at least no longer has the precise meaning attributed to the code word. For example, '30' was widely used in [[journalism]] to mean "end of story", and has been used in [[-30-|other contexts]] to signify "the end".<ref>Kogan, Hadass [http://www.ajr.org/Article.asp?id=4408 "So Why Not 29"] {{webarchive|url=https://web.archive.org/web/20101212101705/http://ajr.org/Article.asp?id=4408 |date=2010-12-12 }} American Journalism Review. Retrieved 2012-07-03.</ref>
<ref>{{cite web
 |title = Western Union "92 Code" & Wood's "Telegraphic Numerals"
 |publisher = Signal Corps Association
 |year = 1996
 |url = http://www.civilwarsignals.org/pages/tele/wurules1866/92code.html
 |access-date = 2012-07-03
 |url-status = live
 |archive-url = https://web.archive.org/web/20120509135118/http://www.civilwarsignals.org/pages/tele/wurules1866/92code.html
 |archive-date = 2012-05-09
}}</ref>