This is the 12805th most frequent Polish word.
niszczenia
"Destruction" or "damaging."
Here, 'niszczenia' is used as a noun in the genitive case, describing the act or process of destroying something.
Proces niszczenia starego mostu rozpoczął się ostatniego lata.
The process of demolishing the old bridge started last summer.
In this case, 'niszczenia' is again a noun in the genitive case, representing evidence or traces of destruction.
Zwrócono uwagę na ślad niszczenia na ścianach budynku.
Attention was drawn to the traces of damage on the walls of the building.
Here, 'niszczenia' functions as a noun in the genitive case, emphasizing the act of breaking down or dismantling.