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 of mega

Adjective

• huge
• giant
• gigantic
• massive
• colossal
• vast
• enormous
• tremendous
• mammoth
• monumental
• astronomical
• immense
• bumper
• big
• monster
• titanic

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

With the Lodge at Blue Sky, the company has introduced an intimate and immersive alternative to the mega-mountain region of Park City-Deer Valley (the ski resorts are about 30 minutes away), which has more than its share of luxury hotels. — Condé Nast, Condé Nast Traveler, 10 Sep. 2026

Her efforts paid off, allowing Flying Fish to write the first check for Silver’s new company and to play a role in its mega seed round, which was led by Sequoia and Lightspeed Ventures. — Jeremy Kahn, Fortune, 7 Sep. 2026

Brady hasn’t been linked to anyone in a hot minute and was recently seen on his mega yacht near his Indian Creek Village mansion solo. — Madeleine Marr, Miami Herald, 5 Sep. 2026

Since mega master calendar hearings started, in-absentia deportation orders have spiked to a record high, according to the legal tech platform bklg. — Ximena Bustillo, NPR, 4 Sep. 2026

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

Rhymes for mega

• omega

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"