This is the 222nd most frequent Norwegian word.
man
The Norwegian word "man" means "one" or "people in general" in English.
In this sentence, 'man' is used as an impersonal pronoun referring to a general subject, meaning 'one' or 'people in general'.
Man må alltid gjøre sitt beste.
One must always do one's best.
Here, 'man' is again used impersonally, indicating a generic observer.
Ser man på dette bildet, kan man se fjellet i bakgrunnen.
Looking at this picture, one can see the mountain in the background.
'Man' is utilized to reference a vague, non-specific subject who must carry out the action.