English version

assumed name

From Longman Dictionary of Contemporary Englishassumed nameasˌsumed ˈname noun [countable]  NAME OF A PERSONif you do something under an assumed name, you do it using a name that is not your real name syn pseudonym He’s been living in Peru under an assumed name.
Examples from the Corpus
assumed nameAfter an international manhunt, Frankel was found living in a Hamburg hotel under an assumed name in September 1999.Using an assumed name, he sneaked into Hong Kong for reasons he asked not to be disclosed.I replied, wondering whether I should even try to embark upon the convoluted saga of Dad and his assumed name.In his assumed name of Brown he sold the timber to an innocent purchaser.These articles were signed by his newly assumed name, Nguyen Ai Quoc.
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