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Synonyms

alias

American  
[ey-lee-uhs] / ˈeɪ li əs /

noun

plural

aliases
  1. a false name used to conceal one's identity; an assumed name.

    The police files indicate that “Smith” is an alias for Simpson.

    Synonyms:
    pseudonym, nom de plume, nom de guerre

adverb

  1. at another time; in another place; in other circumstances; otherwise: “Simpson alias Smith” means that Simpson in other circumstances has called himself Smith.

alias British  
/ ˈeɪlɪəs /

adverb

  1. at another time or place known as or named

    Dylan, alias Zimmerman

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. an assumed name

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of alias

First recorded in 1525–35; from Latin: “at another time, otherwise”; else

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Under the artistic alias Scotty Ramon, he also hosted his first solo art exhibit, “Echoes of the Past,” at Ruttkowski;68 gallery in Paris.

From Los Angeles Times • Apr. 1, 2026

The organization, New Marquetalia, operates in Colombia and Venezuela under the leadership of Luciano Marin, better known by his alias, Iván Márquez.

From The Wall Street Journal • Mar. 21, 2026

Vivi, who operates under the alias Miss Wednesday, is portrayed in the manga as a white woman.

From BBC • Mar. 10, 2026

An StB file from 1982 bears the Slovak-born Babis's signature under the alias "Bures", a fairly common surname.

From Barron's • Feb. 20, 2026

The suspect was a physician whose given name was Mudgett but was known more commonly by the alias H. H. Holmes.

From "The Devil in the White City" by Erik Larson