noun
sack
SAK/sˈæk/
A large flexible bag.
Potatoes fill the large burlap sack to its open top.

Etymology
Greek sakkos could mean a bag made of goat hair as well as coarse cloth. The English sense preserves this practical connection between a sturdy fabric and a container for carrying goods.
In context
I found an old sack, put in two big paper-wasp nests and the hornet bag
More examples
- The farmer stacks sacks of grain in the barn.
- We fill a large paper sack with fallen leaves.
- He ties the empty sack shut with string.
Forms
sack · sacks
sackful noun — An amount that fills one sack.