How to say "Secret" in Japanese

When translating "secret" into Japanese, you must choose carefully between 秘密 and 機密. In Japanese, 秘密 (ひみつ (himitsu)) is typically associated with "secret" (Syllabus Level: N3) and represents Refers to a secret, confidentiality, or privacy. Often used with 秘密にする. On the other hand, 機密 (きみつ (kimitsu)) maps to "secret, classified (information)" (Syllabus Level: N2) and represents Refers to highly sensitive information that must be kept confidential, often in government, military, or corporate settings. 外部に漏らしてはならない重要な秘密の情報。. A literal translation of "secret" can often sound unnatural to native Japanese speakers if mixed up!