sobriquet

a descriptive or familiar name given instead of or in addition to the one belonging to an individual tagged her with the sobriquet “peanut” because of her diminutive size Synonyms alias, byname, cognomen, epithet, handle, moniker (also monicker), nickname (also soubriquet), surnameRelated Words appellation, denomination, denotation, designation, label, tag, title; anonym, nom de guerre, nom de plume, pen name, pseudonym