mega

me-ga · prefix

imported

Definitions

prefix

  1. 1.

    A metric prefix denoting a factor of one million (10^6).

  2. 2.

    A combining form meaning "large" or "great."

  3. 3.

    (informal) Very large, impressive, or successful.

  4. 4.

    (informal) Very; extremely.

Phrases & expressions

  • •
    mega-hit — an extremely successful song, movie, or product
  • •
    megacity — a very large city, typically with over 10 million inhabitants
  • •
    mega-rich — extremely wealthy

Related words

Antonyms: micro, mini, tiny
See also: enormous, giga, kilo, micro
Synonyms: enormous, giant, huge, massive

Etymology

From Greek megas (genitive megalou), meaning "great, large, mighty." Adopted as a scientific prefix in the metric system and later extended to informal usage meaning "very large" or "extremely."