mega

1 of 2

adjective

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

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
The high court opinion came just as the judge who issued the temporary restraining order was mulling whether to hold Trump administration officials in contempt for violating his order to pause the flights of Venezuelan migrants to the mega prison in El Salvador that began in March. Jay Weaver, Miami Herald, 4 June 2025 Once both Glencore and Anglo Amercian complete their house cleaning, the door will be open for a deal and the creation of mega miners more likely to attract the attention of major investment funds. Tim Treadgold, Forbes.com, 3 June 2025 Oyun-Erdene’s coalition government last year announced 14 new mega projects to boost economic growth, including cross-border railway connections and a major expansion of renewable energy. Helen Regan, CNN Money, 2 June 2025 Attorney and longtime political donor John Morgan, founder of the mega personal injury firm Morgan & Morgan, created his own independent party this year and is also weighing a run for governor in the Sunshine State, despite supporting Democratic candidates and causes in the past. Ramsey Touchberry, The Washington Examiner, 29 May 2025 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

Browse Nearby Words

Cite this Entry

“Mega.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mega. Accessed 10 Jun. 2025.

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"

Last Updated: - Updated example sentences
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