mega-
/ˈmɛɡə/
mega- prefix: very large, great.
Prefix
mega-
- Very large, great.
- In the International System of Units and other metric systems of units, multiplying the unit to which it is attached by one million (10⁶).
- Near-synonyms: million, M
- Synonyms:
- million
- Multiplying the unit to which it is attached by 2²⁰ (= 1,048,576, the binary number closest to a million). Computing symbol: Mi.
- Multiplying the unit to which it is attached by 2¹⁰ × 10³ (= 1,024,000, the binary round number closest to a million).
- Really, very, uber-, super-.
- What?! I'm not sure if I scream that out loud or if my inner voice bounces off the insides of my skull. Why is Archie once again meandering over to Team Nadine? Sounds like I'm not the only one who's mega-confused.2014, Michael Griffo, Starfall (The Darkborn Legacy), New York, NY: Kensington Publishing Corporation, →ISBN, pages 93–94
mega- meaning in Tamil and Vietnamese
mega- in Tamil
- மெகா
mega- in Vietnamese
- multiplication factor one million
- mê-ga
Synonyms of mega-
Antonyms
Origin of mega-
From Ancient Greek μέγας (mégas, “great, large, mighty”), from Proto-Indo-European *meǵh₂s (“great”). Cognate with Latin magnus, Sanskrit मह (maha, “great, massive, large-scale, epic”), and with Germanic words: Gothic 𐌼𐌹𐌺𐌹𐌻𐍃 (mikils), Old English micel, Middle English muchel, English much, Old High German mihhil, Old Norse mikill, Danish meget.
Words formed from mega-
- mega
- megabar
- megabase
- megabit
- megabucks
- megabyte
- megacephalic
- megacephalous
- megacephaly
- Megacheiroptera
- megacity
- megacorporation
- megacurie
- megacycle
- megadeal
- megadeath
- megadonor
- megadose
- megadyne
- megafarad
- megafauna
- megaflop
- megaflora
- megagamete
- megagauss
- megagram
- megagramme
- megaherbivore
- megahertz
- megajoule
- megalith
- megalithic
- megalitre
- megaliter
- megalomania
- megalomaniac
- megalomanic
- megametre
- megameter
- megamind
- meganewton
- megapack
- megaparsec
- megaphone
- megapixel
- megapode
- megapolis
- megarad
- megascope
- megasporangium
- megaspore
- megasporic
- megasporophyll
- megastar
- megastore
- megastorm
- megastructure
- megatechnology
- megathere
- megatherian
Questions about mega-
- What does mega- mean?
- Mega- means very large, great.
- What is mega- in Tamil?
- Mega- in Tamil is மெகா. See Mega- meaning in Tamil.
- What part of speech is mega-?
- Mega- is a prefix.
- How do you pronounce mega-?
- Mega- is pronounced /ˈmɛɡə/.
Words near mega- in the dictionary
Source and license
Adapted from Wiktionary: mega- (page history and authors); mega- (Tamil Wiktionary) (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
Last updated:
Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Vealhurl-mega-.wav.
Cite this entry: “mega-.” Word.ws, https://word.ws/mega-. Based on Wiktionary, CC BY-SA 4.0.