Word: 机密 (jīmì) Traditional: 機密 机密 dictionary entry jīmì secret; classified information Full dictionary entry for 机密 Example sentences using 机密 2 sentences, showing page 1 of 1. 他身负机密使命。 Tā shēn fù jīmì shǐmìng. He was charged with a secret mission. 工作人员必须保守国家机密。 Gōngzuòrényuán bìxū bǎoshǒu guójiā jīmì. Staff must keep state secrets.