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

As the result of a search warrant, investigators found Facebook messages between Ball — under an alias — and one of the witnesses in which Ball talks about blaming himself for the shooting. Holly V. Hays, Indianapolis Star, "Authorities charge 2 more men in death of Boone County Deputy Jacob Pickett," 11 July 2018 With Lady Lady, Masego, who also goes by the alias Uncle Sego, finds himself at a peculiar crux. Daise Bedolla, Vogue, "Masego, the Ultra-Smooth “TrapHouseJazz” Singer, Is Ready for His Breakout," 23 Aug. 2018 The sweet-talking thief supposedly posed as a realtor, approaching luxury homes and signing up for open houses under an alias. Sara Rodrigues, House Beautiful, "The LAPD Has Caught The Man Who Posed As A Realtor To Rob Celeb Homes," 4 Jan. 2019 He was born in Kenya and speaks five languages, has frequently used aliases and is accused of being a chronic liar, authorities said. Kristina Davis,, "Man accused of immigration fraud cuts off his GPS ankle bracelet and flees to Mexico, authorities say," 28 June 2018 Miller was the alias of an FBI undercover agent who met Gillum through a lobbyist and one-time friend of the rising Democratic star politician. Gary Fineout, The Seattle Times, "New documents contradict Florida Democratic nominee Gillum," 23 Oct. 2018 According to the investigative websites, Bellingcat and the Insider, Mr. Chepiga traveled to the U.K. under the alias of Ruslan Boshirov. Max Colchester, WSJ, "Russia Dismisses Claims That Spy Poisoning Suspect Is Military Colonel," 27 Sep. 2018 The two men – who likely used aliases to enter the U.K. days before the attack – have been charged with conspiracy to murder, attempted murder and use of a nerve agent. Lucia I. Suarez Sang, Fox News, "Kremlin slams accusations of Russian involvement in ex-spy poisoning, calls them ‘unacceptable’," 6 Sep. 2018 Kessler's mother told police her daughter admitted to using aliases in order to protect herself from a former lover, state police said. Crimesider Staff, CBS News, "Sheriff: Suspect in disappearance of Fla. mom has had 18 aliases, lived in 33 cities," 1 June 2018

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).


grandiloquent, ostentatious, or bombastic

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