Save Gender Masculine Usage Japanese Scripts 光亜, 三亜, etc.(Japanese Kanji) Pronounced Pron. MEE-TSOO-TSOO-GOO [key] Meaning & History From Japanese 光 (mitsu) meaning "light" or 三 (mitsu) meaning "three" combined with 亜 (tsugu) meaning "second, Asia, sub-". Other kanji combinations can be used.