What's the difference between “a lot of water” and “lots of water”？

Question

Answer

A lot of water =

Standard English, sounds more correct.
“There is a lot of water at the water park”

Lots of water =

Colloquialism, a spoken form usually used to exaggerate the fact that a huge quantity of a given thing exists, not formally correct.
“There’s lots of water at the water park”

Answer

They are exactly the same when used as the quantity of a noun.

I have lots of friends.
I have a lot a friends.

However, typically only 'a lot' is used to modify a verb.

I talk a lot.
NOT I talk lots.
They travel a lot.
NOT they travel lots.

Answer

Sebas gave a good answer. Not much of a difference, except „lots of“ is more colloquial, non-standard speech, but many people use it everyday.

Answer

No difference.

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