noun, plural noms de guerre /ˌnɒmz də ˈgɛər; French nɔ̃ də ˈgɛr/ Show Spelled [nomz duh gair; French nawn duh ger] Show IPA . an assumed
name, as one under
which a person fights, paints, writes, etc.; pseudonym.
Origin:
< French: literally, war name