pseudonym
noun /ˈsuːdənɪm/,  /ˈsjuːdənɪm/
  /ˈsuːdənɪm/
- a name used by somebody, especially a writer, instead of their real name假名;化名;笔名 -  under a pseudonym She writes under a pseudonym.她用笔名写作。 
- The rebel chief uses the pseudonym ‘Tigrillo’.叛军首领使用笔名“提格里罗”。 
 - He adopted the pseudonym of George Banks.他用了乔治•班克斯的化名。 
- He has used a variety of pseudonyms.他使用了各种假名。 
 Collocations Dictionaryverb + pseudonym- adopt
- use
 - under a/the pseudonym
 词源mid 19th cent.: from French pseudonyme, from Greek pseudōnymos, from pseudēs ‘false’ + onoma ‘name’.
-  under a pseudonym She writes under a pseudonym.