私人 On the HSK 5 vocabulary list, at CEFR level C1. sīrén ㄙ ㄖㄣˊ private personal interpersonal sb with whom one has a close personal relationship a member of one's clique Where 私人 is used Example sentences and grammar articles using 私人 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