This is the 10973rd most frequent Polish word.
fajerwerkami
"Fajerwerkami" means "fireworks" in the instrumental plural form in Polish.
In this context, 'fajerwerkami' describes the tools or objects the subjects were interacting with during their activity.
Bawiliśmy się fajerwerkami na podwórku.
We were playing with fireworks in the backyard.
The word 'fajerwerkami' is the instrumental plural form of 'fajerwerki', which means 'fireworks'. Here, it is used to describe the means by which the celebratory event is highlighted, in the context of a festive scenario.
Obserwowałem fajerwerkami na sylwestra.
I was observing the fireworks on New Year's Eve.
Here, 'fajerwerkami' explains the medium used to create an admirable visual display, showing its application in describing elements of entertainment or celebration.