Save Gender Masculine Usage Japanese Scripts 達一, 辰一, etc.(Japanese Kanji) Pronounced Pron. TAH-TSUU-EE-CHEE [key] Meaning & History From Japanese 達 (tatsu) meaning "plural marker" or 辰 (tatsu), referring to the Dragon, the fifth of the twelve Earthly Branches combined with 一 (ichi) meaning "one". Other kanji combinations are possible.