秘密保持 ひみつほじ Meanings Noun confidentiality; nondisclosure See also: 秘密保持契約 (ひみつほじけいやく). Kanji 秘 secret. Read as ヒ. 密 dense. Read as ミツ. 保 keep 持 hold. Read as ジ. Words containing 秘密保持 秘密保持契約 (ひみつほじけいやく) non-disclosure agreement Jinuma: Japanese Dictionary · Word lists