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from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A word or name that is used secretly to refer to another; a code name or code word.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A secret name, a code name.

from the GNU version of the Collaborative International Dictionary of English

  • n. A secret name; a name by which a person is known only to the initiated.

from The Century Dictionary and Cyclopedia

  • n. A private, secret, or hidden name; a name which one bears in some society or brotherhood.


crypto- + -onym (Wiktionary)



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  • When life becomes pallid and grim
    Enhance it by wit and by whim.
    Give a glamorous sheen
    To your daily routine
    By adopting a deep cryptonym.

    June 10, 2015

  • Also, a code word, once removed, i.e., a code word that secretly refers to another code word.

    March 5, 2007

  • Code name.

    March 3, 2007