This is the 190th most frequent Danish word.
hvilket
"Which" or "what" (used in questions or relative clauses).
Here, 'hvilket' is used as an interrogative word to inquire about a specific choice among a group of options.
Hvilket hus bor du i?
Which house do you live in?
In this sentence, 'hvilket' introduces a relative clause, specifying the job being referred to.
Jeg ved ikke, hvilket job hun søger.
I don't know which job she is applying for.
Here, 'hvilket' connects a fact stated earlier in the main clause to the subordinate clause that explains or adds information about it.