Save Gender Masculine Usage Japanese (Rare) Scripts 黒太郎, etc.(Japanese Kanji) Pronounced Pron. KOO-RO-TAH-RO [key] Meaning & History From Japanese 黒 (kuro) meaning "black" combined with 太 (ta) meaning "thick, big, great" and 郎 (rō, ryo) meaning "son". Other kanji combinations are possible.