Save Type Surname Gender Feminine Usage Batak Pronounced Pron. /ˈbo.ru si.ˈrɛ.gar/, /ˈbə.ru si.ˈrɛ.gar/ [key·simplify] Meaning & History Feminine form of Siregar. The Br (short form of boru, pronounced BOH-roo or BUH-roo) part is a nickname for women in Bataknese.