This is the 9023rd most frequent Swedish word.
dussin
"Dussin" means "dozen" in English.
Here, 'dussin' is again used as a noun to indicate multiple groups of twelve, emphasizing a larger set of items.
I min samling finns det flera dussin olika gamla frimärken.
In my collection, there are several dozen different old stamps.
Here, the word 'dussin' is used as a noun indicating a quantity equivalent to twelve, which is a common usage in Swedish.
Jag köpte ett dussin äpplen på marknaden.
I bought a dozen apples at the market.
In this sentence, 'dussin' is part of a compound word 'dussinmänniska', meaning 'a dozen person' metaphorically to describe someone average or unremarkable.