Save Gender Masculine & Feminine Usage Japanese Scripts 喜広, 希洋, 希虹, etc.(Japanese Kanji) Pronounced Pron. KEE-HEE-ṘO [key] Meaning & History From Japanese 喜 (ki) meaning "rejoice" or 希 (ki) meaning "hope" combined with 広 (hiro) meaning "vast, wide", 洋 (hiro) meaning "ocean" or 虹 (hiro) meaning "rainbow". Other kanji combinations are possible.