機密 きみつ Meanings Noun secrecy; highly classified information Kanji 機 machine. Read as キ. 密 dense. Read as ミツ. Words containing 機密 機密情報 (きみつじょうほう) confidential information 機密性 (きみつせい) confidentiality 機密文書 (きみつぶんしょ) classified document And 15 more. Jinuma: Japanese Dictionary · Word lists