alias

1 a descriptive or familiar name given instead of or in addition to the one belonging to an individual a dressmaker whom everyone knows as “Bet,” her adopted alias in the dressmaking business that she named after Betsy Ross Synonyms of alias nickname, byname, cognomen, epithet, handle, moniker (also monicker), sobriquet (also soubriquet), surnameWords Related to alias appellation, denomination, denotation, designation, label, tag, title; anonym, nom de guerre, nom de plume, pen name, pseudonym

2 a fictitious or assumed name the English author Eric Blair, better known under the alias of George Orwell Synonyms of alias pseudonym, nom de guerreWords Related to alias nom de plume, pen name; appellation, designation; misnomer; epithet, nickname, sobriquet (also soubriquet)