マル秘 まるひ confidential Meanings also 丸秘 takes の, refers to the ㊙ symbol confidential; secret; classified Its kanji 秘 ヒ · ひ.める、ひそ.か、かく.す secret, conceal In sentences Furigana このことはマル秘ひで。 Keep this information under your hat. #11155222