Word Study
nom de guerre
OXFORD DICTIONARY
nom de guerre, n. (pl. noms de guerre pronunc. same) an assumed name under which a person fights, plays, writes, etc.
Etymology
F, = war-name
ROGET THESAURUS
nom de guerre
Misnomer
N misnomer, lucus a non lucendo, Mrs, Malaprop, what d'ye call 'em, Hoosier, nickname, sobriquet, by-name, assumed name, assumed title, alias, nom de course, nom de theatre, nom de guerre, nom de plume, pseudonym, pseudonymy, misnamed, pseudonymous, soi-disant, self called, self styled, self christened, so-called, nameless, anonymous, without a having no name, innominate, unnamed, unacknowledged, in no sense.For further exploring for "nom de guerre" in Webster Dictionary Online