This is the 567th most frequent Norwegian word.
at
The Norwegian word "at" means "that" in English, used as a conjunction.
Here, 'at' is used as a subordinating conjunction introducing a dependent clause.
Han sier at han skal komme.
He says that he will come.
In this sentence, 'at' is marking the object clause following the adjective 'viktig' (important).
Det er viktig at vi hjelper hverandre.
It is important that we help each other.
Here, 'at' is introducing an infinitive clause, serving to clarify the infinitive 'ta'.