This is the 4982nd most frequent Polish word.
pokrojone
Sliced.
In this context, 'pokrojone' describes bread that is already pre-sliced, often for convenience.
Kupuję tylko pokrojone pieczywo.
I only buy sliced bread.
The word 'pokrojone' describes the state of the vegetables having been chopped.
Pokrojone warzywa leżały na stole.
The chopped vegetables were lying on the table.
Here 'pokrojone' refers to an apple that has been sliced or chopped for easier consumption.