彩虹 Save Sign in to save words On the HSK 7-9 vocabulary list, at CEFR level C2. cǎihóng ㄘㄞˇ ㄏㄨㄥˊ rainbow Character by character 彩(cǎi)color 虹(hóng)rainbow 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