Save Gender Feminine Usage Japanese Scripts 心南子, 椰子実, etc.(Japanese Kanji) Pronounced Pron. KO-KO-NAH-TSUU [key] Meaning & History From Japanese 心 (koko) meaning "heart, mind, soul", 南 (na) meaning "south" combined with 子 (tsu) meaning "child". Other kanji combinations are also possible. Usage of this name is, most likely, influenced by the word coconut.