There are multiple definitions - click on the translation that matches your context.

álnév

főnév

full

assumed name

noun

Definitions of assumed name

English

(also: Doing Business As/DBA/fictitious business name) the name used by a person or entity when doing business; the name used by a business

Any person or persons conducting business under an assumed name in this State must register in the Office of the County Clerk.

English

a name that someone uses temporarily so that no one will know their real name

The movie star checked into a hospital recently under an assumed name.