This is the 14965th most frequent Polish word.
rozbioru
"Rozbioru" means "partition" (typically referring to the division of a territory).
Here, 'rozbioru' refers to the partitioning of land, specifically historical divisions of Poland.
Polska straciła swoją niepodległość w wyniku rozbioru przez ościenne mocarstwa.
Poland lost its independence due to the partition by neighboring powers.
'Rozbiory' refers to historical events where land of Poland was divided among invading countries.
Podczas historii lekcji omawialiśmy trzy rozbiory Polski.
During the history class, we discussed the three partitions of Poland.
In this context, 'rozbiór' refers not to political partition but to the physical act of dismantling a structure.