This is the 12934th most frequent Korean word.
독문학과를
"독문학과를" means "German literature department" in English.
Here, '독문학과를' specifies the object of the verb '전공하고' (majoring), which defines the academic focus.
저는 독문학과를 전공하고 있습니다.
I am majoring in the German Literature department.
In this sentence, '독문학과를' identifies what the friend has graduated from, showing association.
독문학과를 졸업한 친구가 독일에서 일하고 있어요.
A friend who graduated from the German Literature department is working in Germany.
Here, '독문학과를' acts as the object of the decision to select, indicating a choice made.