Save Gender Feminine Usage Japanese Scripts むつ子(Kanji/Hiragana) 睦子, etc.(Japanese Kanji) Pronounced Pron. MOO-TSOO-KO [key] Meaning & History From Japanese 睦 (mutsu) meaning "order" combined with 子 (ko) meaning "child, sign of the rat, first sign of the Chinese zodiac". Other kanji combinations are possible.