This is the 902nd most frequent Persian word.
ـ
The Persian symbol "ـ" indicates the continuation of a word when written in connected script.
The suffix 'ـ ترین' is used for forming the superlative degree, linked with the root adjective.
این کودک باهوشترین شاگرد کلاس است.
This child is the smartest student in the class.
The term 'دوستی' shows possessiveness and association, which 'ـ' acts as a marker for.
دوستی این دو نفر زیباست.
The friendship between these two is beautiful.
The additional 'ـ ی' at the end of 'خانه' implies possession, translating to 'our house' in English.