This is the 607th most frequent Persian word.
پیشین
"پیشین" means "former," "previous," or "prior" in English.
In this sentence, "پیشین" refers to previous or former times to describe a past period in someone's life.
او خاطرات خوشی از دوران پیشین دارد.
He has fond memories of his former times.
Here, "پیشین" is used to describe a prior state or condition of a specific place.
در همین مکان پیشین یک باغ زیبا بود.
In this exact previous location, there was a beautiful garden.
In this example, "پیشین" refers to something earlier in sequence, specifically a previous work by the author.