知己知彼 zhī jǐ zhī bǐ 🔊 know yourself, know your enemy (idiom… + Keep this word Meanings zhī jǐ zhī bǐ know yourself, know your enemy (idiom, from Sunzi's "The Art of War" 孫子兵法|孙子兵法[Sun1 zi3 Bing1 fa3]) Its characters 知zhīto know己jǐself彼bǐthat