This is the 8502nd most frequent Turkish word.
partililere
"Partililere" means "to the party members" in English.
In this sentence, 'partililere' refers to members of a political party, functioning as an indirect object.
Partililere seçim sonuçlarını açıkladık.
We explained the election results to the party members.
Here, 'partililere' again denotes members of a party and is used in the dative case as the indirect recipient of the information.
Partililere yeni politikamız hakkında bilgi verildi.
Information about our new policy was given to the party members.
In this context, 'partililere' is used to signify to or for the party members, manifesting as a recipient of future action.