This is the 748th most frequent Persian word.
دانشجویان
Students.
Here, 'دانشجویان' is used as the subject of the sentence, indicating the group that performed the action of going to the library.
دانشجویان به کتابخانه مراجعه کردند.
The students went to the library.
Here, 'دانشجویان' is used as a plural noun to denote a group of people within a descriptive sentence.
دوستی میان دانشجویان دانشگاه بسیار رایج است.
Friendship among university students is very common.
In this sentence, 'دانشجویان' acts as the object of the sentence, referring to those with whom the professor is discussing.