This is the 3374th most frequent Swedish word.
auktionen
"The auction."
Here, 'auktionen' is used to denote the event or place where items are sold.
Jag vann en vacker tavla på auktionen igår.
I won a beautiful painting at the auction yesterday.
In this sentence, 'auktionen' refers to the scheduled event where bidding will occur.
Auktionen börjar klockan två på eftermiddagen.
The auction starts at two in the afternoon.
The usage of 'auktionen' here specifies the subject being talked about — the specific auction event.