This is the 64th most frequent Norwegian word.
bak
"Bak" means "behind" or "at the back" in English.
In this sentence, 'bak' is a preposition indicating location, meaning 'behind'.
Hunden løper bak huset.
The dog is running behind the house.
Here, 'bak' is used metaphorically to show support or being 'behind' an action or cause.
Jeg sto bak prosjektet hele veien.
I supported the project all the way.
In this example, 'bak' again serves as a preposition indicating location, meaning 'behind'.