mega-
/ˈmɛɡə/prefix
RareNot in standard dictionaries
1
Very large, great.
2
In the International System of Units and other metric systems of units, multiplying the unit to which it is attached by one million (10⁶).
3
Multiplying the unit to which it is attached by 2²⁰ (= 1,048,576, the binary number closest to a million). Computing symbol: Mi.
4
Multiplying the unit to which it is attached by 2¹⁰ × 10³ (= 1,024,000, the binary round number closest to a million).
5
Really, very, uber-, super-.
Thesaurus
#slang