This is the 374th most frequent Estonian word.
hulk
The Estonian word "hulk" means "amount," "number," "quantity," or "crowd" in English.
Here, 'hulk' is used to express an indefinite quantity, suggesting 'a lot', which is metaphorically related to a large amount of tasks.
Mul on terve hulk ülesandeid.
I have a whole bunch of tasks to do.
In this sentence, 'hulk' means 'a number' or 'a group', referring to a large quantity of people.
Parki kogunes suur hulk inimesi.
A large number of people gathered in the park.
In this case, 'hulk' refers to 'a set' as a specific mathematical term describing a collection of elements.