Hei! If somebody could help me. I have a question. What is the difference between den and det? Does one apply to inanimate objects and the other to... well.. living things?
Den refers to that for masculine/feminine nouns (or in special cases the when there is an adjective before a noun)
while det refers to it, or that when the noun is neuter.
https://www.duolingo.com/skill/nb/That-and-Those/tips-and-notes for some more tips / examples :)
"Den"/"det" are masculine-feminine/neuter definite articles, as Hollie has said, but there are a few other ways you can use "det" as well. For instance:
"Presentering". If you had a sentence like, "There is a man over there", where the "There" kind of foreshadows an upcoming noun, you would say, "Det er en mann der borte."
To introduce a noun phrase. If you had a sentence like, "One is afraid of what/that which/the thing that one doesn't understand" (as in the song "Jeg vet" by Siri Nilsen), you would translate as "Man er redd for det man ikke forstar."
You'll later find that "den"/"det" don't just mean "the", but also "that". So, "den mannen" is "that man". "Den gronne mannen" is ambiguous: it could be "the green man", or it could be "that green man".