Pronunciation: (ā'lē-us), [key]
—n., pl. -as•es,
a false name used to conceal one's identity; an assumed name: The police files indicate that “Smith” is an alias for Simpson.
at another time; in another place; in other circumstances; otherwise. “Simpson alias Smith” means that Simpson in other circumstances has called himself Smith.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.