Why is this "a" an "en" and not "et"
Et is used with neuter nouns, e.g., et hus, et barn
Is "Kveld" and "Natt" the same? Wich one is more natural?
evening = kveld (~18:00-23:00)
night = natt (~23:00 - 05:00)
kveld 18:00-24:00, natt = 00:00-06:00
if you want to be pedantic.
Why 'en' and not 'et'? Isn't en for people?
There's no such rule, you have to learn the genders by heart.
Et ensomt monarki
Kveln and natt are the same thing? Both mean night?
Nope! "Kveld" is evening, while "natt" is night :)