\ˈme-gə \

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

As can be seen in the tour, Seaside offers all the trappings of a major mega-resort including nearly a dozen eateries and multiple bars, lounges and showrooms. Gene Sloan, USA TODAY, "First look: Inside MSC Cruises' new MSC Seaview, one of the world's largest cruise ships," 10 July 2018 As an example, Armstrong pointed to Verizon’s recent mega-deal to stream live NFL games through Oath’s media properties. Erin Griffith, WIRED, "Can Verizon Build a Strong Brand From the Bones of Yahoo and AOL?," 15 June 2018 Many have grown to a massive size — three mega-bases in North Carolina, Texas, and Kentucky have populations of more than 200,000 each. David Scharfenberg,, "The US military: The greatest social engineering machine ever built," 9 June 2018 CVS Health on Wednesday detailed what the management team will look like when (and if) its $69 billion mega-deal with health insurer Aetna closes later this year. Sy Mukherjee, Fortune, "We Just Got Details on What the Combined CVS-Aetna Management Will Look Like," 7 June 2018 For example, the cost of a new mega-base for USFK in South Korea, Camp Humphreys, was largely born by the South Korean government. Adam Taylor, Washington Post, "What the two Koreas and Trump have said about withdrawing U.S. troops from peninsula," 4 May 2018 The deal is seen as a major win for Amazon as well as a riposte to its chief rival, Netflix, which has been on a creative buying spree that includes recent deals with mega-producers Ryan Murphy and Shonda Rhimes. David Ng,, "Amazon's TV deal with Jordan Peele among the highest-profile to date for streaming service," 5 June 2018 The move is especially pertinent to Cannes as mega-producer Harvey Weinstein, the catalyst of the #MeToo movement, was accused of assaulting women at the festival in previous years. Aric Jenkins, Fortune, "The Cannes Film Festival Is Opening a Sexual Harassment Hotline in the Wake of #MeToo and Harvey Weinstein," 27 Apr. 2018 The beloved Nordstrom Anniversary Sale officially kicks off next week on July 20, but the mega-retailer has already graced the internet (and Nordstrom cardholders) with early access and a preview of the sales. Tanisha Pina, Allure, "Nordstrom's Anniversary Sale Has Meghan Markle's Favorite Beauty Products at a Discount," 13 July 2018

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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Statistics for mega

Last Updated

8 Nov 2018

Look-up Popularity

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

: extremely

: 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 clear from alleged fault or guilt

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