This is the 8686th most frequent Swedish word.
brevavier
"Brevavier" is not a standard Swedish word. It may be a misspelling or a rarely used term.
Here, 'brevavier' is used to denote a physical mail notification slip indicating an item for collection.
Jag fick en brevavier i posten idag.
I received a notification slip in the mail today.
In this sentence, 'brevavier' refers to the document needed during the retrieval of a mail package.
Du måste ta med din brevavier till postkontoret.
You must bring your notification slip to the post office.
Here, 'brevavier' specifies the slip's function to communicate details regarding the received package.