機密保持契約 きみつほじけいやく Meanings Noun non-disclosure agreement; NDA See also: 秘密保持契約 (ひみつほじけいやく). Kanji 機 machine. Read as キ. 密 dense. Read as ミツ. 保 keep 持 hold 契 pledge. Read as ケイ. 約 promise. Read as ヤク. Example sentences あそこの会社から技術情報をもらうには、まず機密保持契約を結ばなければいけない。To get technical information from that company, we first have to sign a non-disclosure agreement. Jinuma: Japanese Dictionary · Word lists