This is the 4785th most frequent Polish word.
oddzielnie
Separately.
The word 'oddzielnie' is used here to indicate that the documents should be kept apart from each other.
Proszę trzymać te dokumenty oddzielnie.
Please keep these documents separately.
In this sentence, 'oddzielnie' implies that the tasks are to be dealt with individually instead of together.
Każde zadanie jest rozliczane oddzielnie.
Each task is accounted for separately.
Here, 'oddzielnie' indicates that the stages are discussed one by one, focusing on each independently of the others.