This is the 558th most frequent Danish word.
olsen
"Olsen" is a Danish surname and does not have a standalone meaning beyond being a family name.
Here, 'Olsen' is identified as a proper noun used as a surname.
Olsen er en meget almindelig dansk efternavn.
Olsen is a very common Danish last name.
'Olsen' is used as part of a compound noun referring to a specific family.
Olsen-familien bor i det røde hus på hovedgaden.
The Olsen family lives in the red house on Main Street.
In this sentence, 'Olsen' refers to an individual author of the book and serves as a proper noun.