Entry Word: alias

Function: noun

Meaning: 1 a descriptive or familiar name given instead of or in addition to the one belonging to an individual <a dressmaker whom everyone knows as “Bet,” her adopted alias in the dressmaking business that she named after Betsy Ross> — see nickname
2 a fictitious or assumed name <the English author Eric Blair, better known under the alias of George Orwell> — see pseudonym