Wiktionary
soul sister
n. (context informal English) A fellow African American woman
Wikipedia
Soul Sister
Soul Sister can refer to:
Soul Sister (album)
Soul Sister is an album by organist Shirley Scott recorded in 1960 and released on the Prestige label in 1966.
Soul Sister (Aretha Franklin album)
Soul Sister is the ninth studio album by American singer Aretha Franklin, released in 1966 by Columbia Records.