回信 Save Sign in to save words On the HSK 5 vocabulary list, at CEFR level C1. huíxìn ㄏㄨㄟˊ ㄒㄧㄣˋ 男 女 to reply to write back letter written in reply Character by character 回(huí)go back 信(xìn)letter Other words read huíxìn huixin with other tones 灰心 Often confused with huixin 彗星 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