millions
Translation
millions, a very large number
Examples
The project will cost millions of pounds.
The project will cost millions of dollars.
There were millions of people at the festival.
There were millions of people at the festival.
Grammar Patterns
millions of ((plural noun)) a large number of (sth.) The project will cost millions of dollars.
Similar Words
Synonyms: thousands, billions, gazillions (informal)
Etymology
Plural of 'million', from Old French 'million', from Italian 'milione', augmentative of 'mille' (thousand).
Memory Tips
It's simply the plural of 'million'. Often used with 'of' before a noun: 'millions of people'.