This is the 13317th most frequent Swedish word.
tysken
"The German" (referring to a person from Germany).
Here, 'tysken' is used to refer to a specific person of German nationality.
Tysken besökte Sverige under sin semester.
The German visited Sweden during his vacation.
In this case, 'tysken' refers to a German person, possibly a historical or notable figure.
Jag köpte en bok som handlar om tysken.
I bought a book about the German.
Here, 'tysken' is used metonymically to refer to Germany as a whole.