mega

1 of 2

adjective

ˈme-gə How to pronounce mega (audio)
Synonyms of mega
1
: vast
a mega electronics store
2
: of the highest level of rank, excellence, or importance
a number one hit made her mega

mega-

2 of 2

combining form

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

Synonyms of mega

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Adjective

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Examples of mega in a Sentence

Adjective 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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Adjective
Republican gubernatorial candidate Dan Cox is calling for a statewide ban on new mega data centers. — Caroline Foreback, CBS News, 21 Oct. 2026 The trend comes as midsize brands, defined by Kearney as those between $100 million and $1 billion, have struggled to sell, with buyers instead favoring smaller or mega brands. — Noor Lobad, Footwear News, 20 Oct. 2026 In addition to a lively performance by Tate McRae, Megan Thee Stallion, Megan Moroney and Katseye performed for the stars, which included mega momager Kris Jenner sitting front row with Timothée Chalamet. — Tracy Wright, FOXNews.com, 19 Oct. 2026 Selman—who has previously worked with the influential costume designer Zaldy and the mega star Rihanna on her own lingerie line Fenty—was named executive vice president and chief creative officer last year. — Max Berlinger, Vogue, 19 Oct. 2026 See All Example Sentences for mega

Word History

Etymology

Adjective

mega-

Combining form

Greek, from megas large — more at much

First Known Use

Adjective

1968, in the meaning defined at sense 1

Time Traveler
The first known use of mega was in 1968

Rhymes for mega

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Browse Nearby Words

MEG
mega
mega-
See all Nearby Words

Cite this Entry

“Mega.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mega. Accessed 27 Oct. 2026.

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Kids Definition

mega-

combining form
variants or meg-
1
: great : large
megaspore
2
: million : multiplied by one million
megahertz
3
: to the highest or greatest degree
mega-successful
Etymology

Combining form

from Greek megas "large"

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