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-
1
a
: great : large
megaspore
b
: greatly surpassing others of its kind
megahit
2
: million (106)
megohm
megacycle
Synonyms
Adjective
- astronomical
- astronomic
- Brobdingnagian
- bumper
- colossal
- cosmic
- cosmical
- cyclopean
- elephantine
- enormous
- galactic
- gargantuan
- giant
- gigantesque
- gigantic
- grand
- herculean
- heroic
- heroical
- Himalayan
- huge
- humongous
- humungous
- immense
- jumbo
- king-size
- king-sized
- leviathan
- mammoth
- massive
- mighty
- monster
- monstrous
- monumental
- mountainous
- oceanic
- pharaonic
- planetary
- prodigious
- super
- super-duper
- supersize
- supersized
- titanic
- tremendous
- vast
- vasty
- walloping
- whacking
- whopping
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
Jennifer Maas, Variety, 27 June 2024
Starlink and other mega constellations rely on an economy of scale; their massive fleet is continually refreshed with new satellites to replace old ones that burn up in Earth’s atmosphere.
—Max Springer, Scientific American, 25 June 2024
Functional, thoughtful presents of all kinds abound on the mega retailer’s website.
—Kristi Kellogg, Architectural Digest, 25 June 2024
This also comes as Biden and former President Bill Clinton plan to team up for a mega fundraiser hosted by former Virginia Gov. Terry McAuliffe in his home in McLean, Virginia, on the very same day.
—Samantha-Jo Roth, Washington Examiner - Political News and Conservative Analysis About Congress, the President, and the Federal Government, 18 June 2024
See all Example Sentences for mega 
Adjective
The union remains in ongoing negotiations for a new contract with the mega gaming studios, with a strike authorization vote being approved by 98% in September.
—Jennifer Maas, Variety, 27 June 2024
Starlink and other mega constellations rely on an economy of scale; their massive fleet is continually refreshed with new satellites to replace old ones that burn up in Earth’s atmosphere.
—Max Springer, Scientific American, 25 June 2024
Functional, thoughtful presents of all kinds abound on the mega retailer’s website.
—Kristi Kellogg, Architectural Digest, 25 June 2024
This also comes as Biden and former President Bill Clinton plan to team up for a mega fundraiser hosted by former Virginia Gov. Terry McAuliffe in his home in McLean, Virginia, on the very same day.
—Samantha-Jo Roth, Washington Examiner - Political News and Conservative Analysis About Congress, the President, and the Federal Government, 18 June 2024
See all Example Sentences for mega
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'mega.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Dictionary Entries Near mega
Cite this Entry
“Mega.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mega. Accessed 4 Jul. 2024.
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