Word: 知己知彼 (zhījǐzhībǐ) 知己知彼 dictionary entry zhījǐzhībǐ 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]) Full dictionary entry for 知己知彼 Example sentences using 知己知彼 2 sentences, showing page 1 of 1. 想赢球，就得知己知彼。 Xiǎng yíngqiú, jiù de zhījǐzhībǐ. If you want to win the game, you have to know yourself and your opponent. 比赛前要知己知彼。 Bǐsài qián yào zhījǐzhībǐ. Before a match, you need to know yourself and your opponent.