This is the 7713th most frequent Swedish word.
tjuven
The Swedish word "tjuven" means "the thief" in English.
Here, "tjuven" refers to an individual who engages in theft; the definite form indicates specificity as this thief is the subject.
Tjuven smög sig in i huset under natten.
The thief sneaked into the house during the night.
"Tjuven" is used again in the definite form, referring to a hypothetical or specific known individual who might commit theft.
Vi måste vara försiktiga så att tjuven inte tar våra saker.
We must be careful so that the thief doesn't take our belongings.
In this instance, "tjuven" refers to a person the police are searching for due to their act of theft, showing its typical role as a noun denoting a criminal activity.