English

edit

Etymology

edit

From mega- +‎ million.

Noun

edit

megamillion (plural megamillions)

  1. (informal) A great number of millions.

Usage notes

edit

The word does not come from the SI prefix mega-. Thus the word means "a great number of millions", not a thousand million or a million million. The noun is mainly used attributively.

edit

See also

edit