Definition of pseudonym noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˈsuːdənɪm//
, also BrE//ˈsjuːdənɪm//
; NAmE NAmE//ˈsuːdənɪm//
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a name used by somebody, especially a writer, instead of their real name She writes under a pseudonym. The rebel chief uses the pseudonym ‘Tigrillo’. compare pen name Word Originmid 19th cent.: from French pseudonyme, from Greek pseudōnymos, from pseudēs ‘false’ + onoma ‘name’.Extra examples He used various pseudonyms. He adopted the pseudonym of George Banks. He has used a variety of pseudonyms. She writes under a pseudonym.
See the Oxford Advanced American Dictionary entry: pseudonym