孤單 Save Sign in to save words Simplified: 孤单 On the HSK 7-9 vocabulary list, at CEFR level C2. gūdān ㄍㄨ ㄉㄢ lone lonely loneliness Character by character 孤(gū)lone 單(dān)bill 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