知彼知己 Save Sign in to save words zhībǐzhījǐ ㄓ ㄅㄧˇ ㄓ ㄐㄧˇ to know the enemy and know oneself (idiom, from Sunzi's "The Art of War") Character by character 知(zhī)know 彼(bǐ)that 知(zhī)know 己(jǐ)self A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0