This is the 14944th most frequent Polish word.
rolnikami
"Rolnikami" means "farmers" in English (instrumental plural form).
The word 'rolnikami' is used as an instrumental plural form to indicate who the subject is identified with, here meaning 'as farmers' or 'being farmers'.
Rolnikami są osoby zajmujące się uprawą ziemi.
Farmers are people involved in the cultivation of land.
The word 'rolnikami' serves as the instrumental case plural to describe with whom the action (talking) is taking place.
Chcielibyśmy porozmawiać z rolnikami na temat nowych technik rolnictwa.
We would like to talk to farmers about new farming techniques.
In this case, 'rolnikami' is used in the instrumental plural form to represent the collaborators (farmers) in the action of collaboration.