This is the 1366th most frequent Swedish word.
nils
"Nils" is a Swedish given name, equivalent to "Nicholas" in English.
Here, 'Nils' is used as a proper noun, referring to a person's name.
Nils läste en bok under helgen.
Nils read a book during the weekend.
In this context, 'nilsar' is a verb that could colloquially mean 'hem', referring to adjusting the length of jeans.
Jag nilsar alltid mina jeans för att hålla dem snygga.
I always hem my jeans to keep them neat.
Here, 'Nils'' denotes possession, indicating ideas that belong to Nils.