Code name
word or name used, sometimes clandestinely, to refer to another name, word, project or person
A code name, codename, call sign, or cryptonym is a code word or name used, sometimes clandestinely, to refer to another name, word, project, or person. Code names are often used for military purposes, or in espionage. They may also be used in industrial counter-espionage to protect secret projects and the like from business rivals, or to give names to projects whose marketing name has not yet been determined. Another reason for the use of names and phrases in the military is that they transmit with a lower level of cumulative errors over a walkie-talkie or radio link than actual names.
Code names are also used for commercial products, for a variety of reasons. One of them can include that a marketing name has not yet been established during product development.
Origins
Achaemenid Empire
The Achaemenid Empire under Darius I employed a network of spies called the King's Eye or the King's Ear. These agents operated under anonymity, and "King's Eye" was not a specific person but rather a code name for the intelligence network that reported directly to the king.
Punic Wars
The Carthaginian general Hannibal Barca reportedly used coded references for his agents and informants in Rome and among allied territories. Some sources suggest that key figures in his intelligence operations were identified using nicknames instead of real names to avoid detection by Roman counterintelligence.
This brief starts where responsible research should: with the source description of “Code name” as word or name used, sometimes clandestinely, to refer to another name, word, project or person. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the general reference register because the source frames it as word or name used, sometimes clandestinely, to refer to another name, word, project or person. Its deeper value depends on whether names, dates, institutions and citations support that framing.
The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Aug 20, 2026. The linked authority identifier is Q590490. None of the 0 selected statements returned an explicit reference.
Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
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Questions for further research
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This entry incorporates text from “Code name” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.