This is the 258th most frequent Persian word.
در
"در" in Persian means "in" or "door," depending on the context.
In this sentence, 'در' is used as a preposition meaning 'at' or 'in', indicating the location of the subject.
من در خانه هستم.
I am at home.
Here, 'در' functions as a preposition meaning 'on' or 'in', specifying where the books are placed.
کتابها را در قفسه گذاشتم.
I placed the books on the shelf.
Here, 'در' is used as a preposition to indicate a time frame, translating to 'in' in English.