This is the 56th most frequent Norwegian word.
samme
"Samme" means "same" in English.
In this sentence, 'samme' is an adjective modifying the noun 'restaurant', establishing the idea of equality or identity between two or more instances.
Vi spiste på samme restaurant som alltid.
We ate at the same restaurant as always.
Here, 'samme' is used to describe an identical set or characteristic, in this case 'interesser', among members of a group.
De har samme interesser som hverandre.
They have the same interests as each other.
In this context, 'den samme' emphasizes specificity and repetition, implying it is an identical item rather than another similar one.