This is the 4095th most frequent Polish word.
aukcji
The Polish word "aukcji" means "auction" in English.
The word "aukcji" refers to the specific event or instance of the charity auction in the context of the sentence.
Wzięłam udział w aukcji charytatywnej.
I participated in a charity auction.
Here, "aukcji" refers to the occurrence of the auction event that took place yesterday evening.
Książki zostały sprzedane podczas aukcji wczorajszego wieczoru.
The books were sold during the auction last night.
In this instance, "aukcji" denotes the planned event meant to happen in the future.