This is the 15564th most frequent Polish word.
stowarzyszeniu
"Stowarzyszeniu" means "to the association" in English.
Noun, instrumental case, referring to a specific type of organized group.
W tym stowarzyszeniu panuje bardzo przyjazna atmosfera.
In this association, there is a very friendly atmosphere.
Noun, accusative case, indicating the direct object of the verb 'joined,' specifying an organization.
Przyłączyłem się do nowo powstałego stowarzyszenia w moim mieście.
I joined a newly formed association in my city.
Noun, dative case, showing the entity receiving an action or benefit of the help provided.