This is the 12849th most frequent Russian word.
куски
Pieces.
Here 'куски' means 'pieces', referring to portions of bread split by cutting.
Я нарезал хлеб на куски.
I cut the bread into pieces.
In this sentence, 'куски' is used to indicate portions or chunks of meat.
Куски мяса были слишком большими для сковороды.
The pieces of meat were too large for the pan.
Here, 'куски' signifies sections or portions of cardboard used for construction.