This is the 693rd most frequent Swedish word.
larsson
"Larsson" is a Swedish surname meaning "son of Lars."
Here, 'Larsson' is used as a surname to identify the author of the book.
Jag läste en bok av författaren Larsson.
I read a book by the author Larsson.
In this example, 'Larsson' refers to the name of a person known as a football player.
Fotbollsspelaren Larsson gjorde tre mål i matchen.
The football player Larsson scored three goals in the match.
This sentence uses 'Larsson' as a surname representing the entire family.