This is the 11th most frequent Persian word.
بر
"بر" in Persian means "on," "above," "fruit," or "yield," depending on context.
'بر' means 'on' here, indicating the position of the book relative to the table.
کتاب را بر میز گذاشتم.
I placed the book on the table.
'بر' is part of the expression 'بر اثر,' meaning 'due to,' indicating the reason for the situation.
بر اثر باران، خیابانها خیس شدند.
Due to the rain, the streets became wet.
'بر' is used here as 'over,' signifying overcoming or surpassing.