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
Kayla Dwyer, The Indianapolis Star, 5 Nov. 2024
Two mega crypto investors met on YouTube to debate the presidential election.
—Brady Dale, Axios, 5 Nov. 2024
Higher earners may be able to bypass the income limits with mega backdoor Roth conversions, which shift after-tax 401(k) contributions to a Roth account.
—Jessica Dickler,kate Dore, Cfp®, CNBC, 1 Nov. 2024
Oil prices stuck at $80 per barrel over the last year, and flagging overseas investment, have blown a $32 billion hole in the kingdom’s budget and led to spending on mega projects like the futuristic city of Neom reportedly being dialed back.
—Iain Martin, Forbes, 1 Nov. 2024
See all Example Sentences for mega 
Examples are automatically compiled from online sources to
show current usage.
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Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
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Adjective
But in the last few months, once-longshot-candidate Democrat Jennifer McCormick has become a formidable enough opponent that national Republicans have pumped mega dollars to help out, and state Republicans have even launched attacks on the Libertarian candidate, Donald Rainwater.
—Kayla Dwyer, The Indianapolis Star, 5 Nov. 2024
Two mega crypto investors met on YouTube to debate the presidential election.
—Brady Dale, Axios, 5 Nov. 2024
Higher earners may be able to bypass the income limits with mega backdoor Roth conversions, which shift after-tax 401(k) contributions to a Roth account.
—Jessica Dickler,kate Dore, Cfp®, CNBC, 1 Nov. 2024
Oil prices stuck at $80 per barrel over the last year, and flagging overseas investment, have blown a $32 billion hole in the kingdom’s budget and led to spending on mega projects like the futuristic city of Neom reportedly being dialed back.
—Iain Martin, Forbes, 1 Nov. 2024
See all Example Sentences for mega
Dictionary Entries Near mega
Cite this Entry
“Mega.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mega. Accessed 21 Nov. 2024.
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