ali·​as | \ ˈā-lē-əs How to pronounce alias (audio) , ˈāl-yəs\

Definition of alias

 (Entry 1 of 2)

: otherwise called : otherwise known as used to indicate an additional name that a person (such as a criminal) sometimes uses John Smith alias Richard Jones was identified as the suspect.



Definition of alias (Entry 2 of 2)

: an assumed or additional name that a person (such as a criminal) sometimes uses a fugitive using several aliases He checked into the hotel using an alias. John Smith, who goes by the alias Richard Jones

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Examples of alias in a Sentence

Recent Examples on the Web: Noun

At the time of his April 2 arraignment, Rivera had 11 open cases pending against him, was using numerous aliases, and had been warned five times by judges that he would be jailed if he were arrested again. Shelley Murphy,, "Stopping injustice or putting the public at risk? Suffolk DA Rachael Rollins’s tactics spur pushback," 6 July 2019 Outside, tyres were stacked up into a staircase. Mr Santrich (an alias, his real name is Seuxis Hernández Solarte) had left without anyone noticing, despite supposedly being almost blind. The Economist, "The disappearance of Jesús Santrich threatens Colombia’s peace deal," 4 July 2019 The film presents viewers with two women: Chloe Wofford (Morrison’s birth name) and Toni Morrison (an alias adapted from her Catholic name, Anthony, and her ex-husband’s surname). Syreeta Mcfadden, The Atlantic, "A Documentary That Shows Another Side of Toni Morrison," 25 June 2019 Cynthia Nixon on getting single-payer health care in New York: 'Pass it and then figure out how to fund it.' ACROSS THE NATION Mollie Tibbetts' suspected killer reportedly used alias 'John Budd' at work. Fox News, "FOX NEWS FIRST: Trump wants White House official behind NY Times op-ed ID'd; DOJ targets conservative censorship," 6 Sep. 2018 All of these are also identified by several aliases; Sugon, for example, is also known as Dawning. Mark Hachman, PCWorld, "The U.S. blacklists five Chinese supercomputer firms, including AMD joint venture THATIC," 21 June 2019 Ramon Martinez Perez, who goes by the alias Rolfie, was detained and is currently being questioned, Dominican authorities said. NBC News, "Suspected gunman in David Ortiz shooting arrested as authorities reveal $400K plot to kill him," 12 June 2019 Watts now travels using an alias and with security. Elizabeth Hernandez, The Denver Post, "How a Colorado mother went from starting a Facebook group to identifying as the National Rifle Association’s worst nightmare," 9 June 2019 Gonzalez used 40 different phone numbers and 15 aliases while communicating with potential customers, according to the filing. Hannah Fry,, "He sold near-death puppies to families for more than a year, prosecutors say. Now he’s facing criminal charges," 7 June 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'alias.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of alias


15th century, in the meaning defined above


1605, in the meaning defined above

History and Etymology for alias

Adverb and Noun

Latin, otherwise, from alius other — more at else

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Dictionary Entries near alias

Al Hufuf





Ali Baba


Statistics for alias

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Time Traveler for alias

The first known use of alias was in the 15th century

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More Definitions for alias


\ ˈā-lē-əs\

Kids Definition of alias

 (Entry 1 of 2)

: otherwise known as Samuel Clemens, alias Mark Twain wrote many stories about life on the Mississippi.



Kids Definition of alias (Entry 2 of 2)

: a false name The criminal used several aliases.


\ ˈā-lē-əs, ˈāl-yəs How to pronounce alias (audio) \

Legal Definition of alias

 (Entry 1 of 3)

: otherwise called : also known as John Thomas Nolan, alias Legs Diamond



Legal Definition of alias (Entry 2 of 3)

: an assumed or additional name



Legal Definition of alias (Entry 3 of 3)

: issued after the original instrument has not produced any action an alias tax warrant an alias summons — compare pluries

History and Etymology for alias


Latin, otherwise, from alius other

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More from Merriam-Webster on alias

Thesaurus: All synonyms and antonyms for alias

Spanish Central: Translation of alias

Nglish: Translation of alias for Spanish Speakers

Britannica English: Translation of alias for Arabic Speakers

Comments on alias

What made you want to look up alias? Please tell us where you read or heard it (including the quote, if possible).


to form ideas or theories about something

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