much
The German word 'viel' is used to express a large quantity or amount. It is often used in conjunction with uncountable nouns or to express a high degree of something. For example, 'Ich habe viel Arbeit' means 'I have a lot of work'.
I have a lot to do today.
This sentence is using 'viel' to express the quantity of tasks or activities that need to be completed within the day.
He drinks a lot of water.
In this context, 'viel' is used to indicate a large amount of a particular item, in this case, water, that someone is drinking.
We have learned a lot.
Here, 'viel' is used to signify the great amount of knowledge or skills that have been acquired.