\ ˈme-gə How to pronounce mega (audio) \

Definition of mega

 (Entry 1 of 2)

1 : vast a mega electronics store
2 : of the highest level of rank, excellence, or importance a number one hit made her mega
variants: or meg-

Definition of mega- (Entry 2 of 2)

1a : great : large megaspore
b : greatly surpassing others of its kind megahit
2 : million (106) megohm megacycle

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Examples of mega in a Sentence


an actor who has become a mega celebrity I will never understand why people build those mega houses on tiny lots.

Recent Examples on the Web: Adjective

His groundbreaking work — both literally and figuratively — spawned more than 500 buildings, including mega hits like Fallingwater and the Guggenheim Museum. Lori Rackl,, "New Frank Lloyd Wright trail unveiled: 13 sites from Rockford to Springfield," 7 May 2018 The Atlanta mega-mansion built by director-actor Tyler Perry is back on the market and poised to break real estate records for the second time. Meghan Overdeep, Southern Living, "Georgia’s Most-Expensive Home Is Back on the Market for a Whopping $25 Million," 2 July 2018 Its neighborhoods encompass everything from the mega-mansions and gleaming Land Rovers in Piney Point Village to yard sales featuring poofy quinceañera dresses in the majority Latino and African-American middle-class neighborhoods like Cypress. Ella Nilsen, Vox, "This Democratic primary race is a test of whether unapologetic progressivism can win in Texas," 21 May 2018 But the idea of a new competition or breakaway by Europe’s mega-rich clubs? Joshua Robinson, WSJ, "Soccer’s Super League Threat Isn’t Going Away," 12 Nov. 2018 While highlighted wet curls and diamond earrings on guys should probably stay in the '00s, a mega-rich Brazilian soccer player like Ronaldo is one of few who can pull it off. Megan Gustashaw, GQ, "The Week in Excellent Celebrity Haircuts," 25 Feb. 2018 High-speed 64th notes were in abundance, and there were also mercurial mood changes, widely spaced mega-chords and quaking, two-note tremolos. Barbara Jepson, WSJ, "A Master of the Virtuosic Miniature in New York," 24 Jan. 2019 She was raised alongside eight mega-talented siblings, including two musically inclined sisters (just like the Alien mentioned) and, most notably, Michael Jackson. Heather Finn, Good Housekeeping, "This Wild Theory About the Alien on 'The Masked Singer' Is 100% Correct," 23 Jan. 2019 If their releases counted under Disney, the new mega-studio would have dwarfed all studios with 37 nominations. Jake Coyle, The Seattle Times, "Oscar nods honor ‘Roma,’ ‘The Favourite,’ ‘Black Panther’," 23 Jan. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'mega.' 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 mega


1968, in the meaning defined at sense 1

History and Etymology for mega



Combining form

Greek, from megas large — more at much

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Dictionary Entries near mega








Statistics for mega

Last Updated

15 Mar 2019

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Time Traveler for mega

The first known use of mega was in 1968

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English Language Learners Definition of mega

 (Entry 1 of 2)

: very large
: very popular, successful, or important

English Language Learners Definition of mega- (Entry 2 of 2)

: great : large
informal : extremely
technical : million : multiplied by one million

More from Merriam-Webster on mega

Thesaurus: All synonyms and antonyms for mega

Britannica English: Translation of mega for Arabic Speakers

Comments on mega

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


to reflect, repel, echo, or resound

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