mega

1 of 2

adjective

ˈme-gə 

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

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

Adjective

The Globes could be another platform for the best actor nominee and brand to create a mega fashion moment. —Alex Badia, WWD, 9 Dec. 2024

Today, the mega retailer has slashed prices on all-in-one luggage sets, sleek weekender bags, and trusty carry-ons. —Amelia McBride, Travel + Leisure, 2 Dec. 2024

And when the love of my life came into my life, Tom, who is also a mega dog lover, moved across the country with his beautiful German Shepherd, Blue. —Janelle Ash, Fox News, 26 Nov. 2024

He was spotted wearing an unreleased Omega Seamaster with a burgundy bezel, black dial, and mega-stylish Milanese bracelet. —Jeremy White, WIRED, 21 Nov. 2024

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

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"