Gender Masculine & Feminine Usage Japanese Scripts 慧, 圭, 慶, 恵, etc.(Japanese Kanji) けい(Japanese Hiragana) Pronounced Pron. KEH Meaning & History From Japanese 慧 (kei) meaning "intelligent", 圭 (kei) meaning "gemstone" or 慶 (kei) meaning "congratulate". This name can also be formed from other kanji or kanji combinations.