Save Gender Masculine Usage Japanese Scripts 宏太, 広太, etc.(Japanese Kanji) Pronounced Pron. KHEE-RO-TAH [key] Meaning & History From Japanese 宏 (hiro) meaning "wide, spacious, great, vast" or 広 (hiro) meaning "vast, wide" combined with 太 (ta) meaning "thick, big". Other kanji combinations are possible.