機密保護 きみつほご Meanings Noun security (e.g. data, password, etc.) Kanji 機 machine. Read as キ. 密 dense. Read as ミツ. 保 keep 護 protect. Read as ゴ. Words containing 機密保護 データ機密保護 (データきみつほご) data security Word lists Computing Jinuma: Japanese Dictionary · Word lists