知己 Save Sign in to save words On the HSK 7-9 vocabulary list, at CEFR level C2. zhījǐ ㄓ ㄐㄧˇ to know oneself to be intimate or close intimate friend Character by character 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 国际中文教育中文水平等级标准, 中华人民共和国教育部, MIT